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  <title>pwn.watch: SharePoint incident updates</title>
  <link>https://pwn.watch/t/sharepoint</link>
  <description>Live security incidents worldwide: CVEs, patch status, fixed versions, advisories and the posts that broke them.</description>
  <language>en</language>
  <lastBuildDate>Fri, 25 Sep 2026 00:00:00 GMT</lastBuildDate>
  <atom:link href="https://pwn.watch/t/sharepoint/feed.xml" rel="self" type="application/rss+xml" />
  <item>
    <title>[high] Microsoft SharePoint: Microsoft SharePoint Code Injection Vulnerability</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-cve-2026-65660</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-cve-2026-65660</guid>
    <pubDate>Fri, 25 Sep 2026 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint contains a code injection vulnerability which could allow an authorized attacker to execute code over a network. Added to CISA KEV on 2026-09-25.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2026-09-25: CISA added CVE-2026-65660 to the KEV catalog (due 2026-09-28).&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2026-65660&lt;/p&gt;</description>
  </item>
  <item>
    <title>[high] Microsoft SharePoint: Microsoft SharePoint Weak Authentication Vulnerability</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-cve-2026-55040</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-cve-2026-55040</guid>
    <pubDate>Tue, 18 Aug 2026 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint contains a weak authentication vulnerability which allows an unauthorized attacker to bypass a security feature over a network. Added to CISA KEV on 2026-08-18.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2026-08-18: CISA added CVE-2026-55040 to the KEV catalog (due 2026-08-21).&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2026-55040&lt;/p&gt;</description>
  </item>
  <item>
    <title>[high] Microsoft SharePoint: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability </title>
    <link>https://pwn.watch/i/microsoft-sharepoint-cve-2026-50522</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-cve-2026-50522</guid>
    <pubDate>Wed, 22 Jul 2026 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint contains a deserialization of untrusted data vulnerability which could allow an unauthorized attacker to execute code over a network. Added to CISA KEV on 2026-07-22.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2026-07-22: CISA added CVE-2026-50522 to the KEV catalog (due 2026-07-25).&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2026-50522&lt;/p&gt;</description>
  </item>
  <item>
    <title>[high] Microsoft SharePoint: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-cve-2026-58644</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-cve-2026-58644</guid>
    <pubDate>Thu, 16 Jul 2026 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network. Added to CISA KEV on 2026-07-16.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2026-07-16: CISA added CVE-2026-58644 to the KEV catalog (due 2026-07-19).&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2026-58644&lt;/p&gt;</description>
  </item>
  <item>
    <title>[high] Microsoft SharePoint Server: Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-server-cve-2026-56164</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-server-cve-2026-56164</guid>
    <pubDate>Tue, 14 Jul 2026 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint contains a missing authentication for critical function vulnerability that allows an unauthorized attacker to elevate privileges over a network. Added to CISA KEV on 2026-07-14.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2026-07-14: CISA added CVE-2026-56164 to the KEV catalog (due 2026-07-17).&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2026-56164&lt;/p&gt;</description>
  </item>
  <item>
    <title>[high] Microsoft SharePoint Server: Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-server-cve-2026-45659</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-server-cve-2026-45659</guid>
    <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint Server contains a deserialization of untrusted data vulnerability which allows an authorized attacker to execute code over a network. Added to CISA KEV on 2026-07-01.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2026-07-01: CISA added CVE-2026-45659 to the KEV catalog (due 2026-07-04).&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2026-45659&lt;/p&gt;</description>
  </item>
  <item>
    <title>[high] Microsoft SharePoint Server: Microsoft SharePoint Server Improper Input Validation Vulnerability</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-server-cve-2026-32201</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-server-cve-2026-32201</guid>
    <pubDate>Tue, 14 Apr 2026 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network. Added to CISA KEV on 2026-04-14.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2026-04-14: CISA added CVE-2026-32201 to the KEV catalog (due 2026-04-28).&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2026-32201&lt;/p&gt;</description>
  </item>
  <item>
    <title>[high] Microsoft SharePoint: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-cve-2026-20963</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-cve-2026-20963</guid>
    <pubDate>Wed, 18 Mar 2026 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network. Added to CISA KEV on 2026-03-18.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2026-03-18: CISA added CVE-2026-20963 to the KEV catalog (due 2026-03-21).&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2026-20963&lt;/p&gt;</description>
  </item>
  <item>
    <title>[critical] ToolShell: mass exploitation of on-prem SharePoint (CVE-2025-53770, CVE-2025-49704, CVE-2025-49706)</title>
    <link>https://pwn.watch/i/toolshell-sharepoint-cve-2025-53770</link>
    <guid isPermaLink="true">https://pwn.watch/i/toolshell-sharepoint-cve-2025-53770</guid>
    <pubDate>Tue, 22 Jul 2025 00:00:00 GMT</pubDate>
    <category>critical</category>
    <description>&lt;p&gt;Unauthenticated RCE chain against on-premises SharePoint Server, mass-exploited from July 18, 2025. Microsoft observed Linen Typhoon, Violet Typhoon and Storm-2603 exploiting it; Storm-2603 deployed Warlock ransomware. Patching alone is not enough: rotate ASP.NET machine keys and restart IIS. SharePoint Online was not affected.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See Microsoft customer guidance for CVE-2025-53770&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2025-07-22: Microsoft attributes exploitation to Linen Typhoon, Violet Typhoon and Storm-2603 (&lt;a href=&quot;https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/&quot;&gt;source&lt;/a&gt;)&lt;/li&gt;&lt;li&gt;2025-07-22: CISA adds CVE-2025-49704 and CVE-2025-49706 to KEV&lt;/li&gt;&lt;li&gt;2025-07-20: CISA adds CVE-2025-53770 to KEV and publishes guidance (&lt;a href=&quot;https://www.cisa.gov/news-events/alerts/2025/07/20/update-microsoft-releases-guidance-exploitation-sharepoint-vulnerabilities&quot;&gt;source&lt;/a&gt;)&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2025-49704, CVE-2025-49706, CVE-2025-53770&lt;/p&gt;</description>
  </item>
  <item>
    <title>[high] Microsoft SharePoint Deserialization</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-cve-2024-38094</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-cve-2024-38094</guid>
    <pubDate>Tue, 22 Oct 2024 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint contains a deserialization vulnerability that allows for remote code execution. Added to the CISA KEV catalog on 2024-10-22. CISA lists known use in ransomware campaigns.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2024-10-22: CISA added CVE-2024-38094 to the KEV catalog (federal deadline 2024-11-12) (&lt;a href=&quot;https://www.cisa.gov/known-exploited-vulnerabilities-catalog&quot;&gt;source&lt;/a&gt;)&lt;/li&gt;&lt;li&gt;2024-07-09: CVE-2024-38094 published (&lt;a href=&quot;https://nvd.nist.gov/vuln/detail/CVE-2024-38094&quot;&gt;source&lt;/a&gt;)&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2024-38094&lt;/p&gt;</description>
  </item>
  <item>
    <title>[high] Microsoft SharePoint Server Code Injection</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-server-cve-2023-24955</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-server-cve-2023-24955</guid>
    <pubDate>Tue, 26 Mar 2024 00:00:00 GMT</pubDate>
    <category>high</category>
    <description>&lt;p&gt;Microsoft SharePoint Server contains a code injection vulnerability that allows an authenticated attacker with Site Owner privileges to execute code remotely. Added to the CISA KEV catalog on 2024-03-26. CISA lists known use in ransomware campaigns. CVE-2023-24955 was assigned before 2024; the KEV listing came in 2024.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2024-03-26: CISA added CVE-2023-24955 to the KEV catalog (federal deadline 2024-04-16) (&lt;a href=&quot;https://www.cisa.gov/known-exploited-vulnerabilities-catalog&quot;&gt;source&lt;/a&gt;)&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2023-24955&lt;/p&gt;</description>
  </item>
  <item>
    <title>[critical] Microsoft SharePoint Server Privilege Escalation</title>
    <link>https://pwn.watch/i/microsoft-sharepoint-server-cve-2023-29357</link>
    <guid isPermaLink="true">https://pwn.watch/i/microsoft-sharepoint-server-cve-2023-29357</guid>
    <pubDate>Wed, 10 Jan 2024 00:00:00 GMT</pubDate>
    <category>critical</category>
    <description>&lt;p&gt;Microsoft SharePoint Server contains an unspecified vulnerability that allows an unauthenticated attacker, who has gained access to spoofed JWT authentication tokens, to use them for executing a network attack. This attack bypasses authentication, enabling the attacker to gain administrator privileges. Added to the CISA KEV catalog on 2024-01-10. CISA lists known use in ransomware campaigns. CVE-2023-29357 was assigned before 2024; the KEV listing came in 2024.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Status:&lt;/strong&gt; closed · &lt;strong&gt;Patch:&lt;/strong&gt; patched · &lt;strong&gt;Fixed in:&lt;/strong&gt; See vendor advisory linked in sources&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Latest updates:&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;2024-01-10: CISA added CVE-2023-29357 to the KEV catalog (federal deadline 2024-01-31) (&lt;a href=&quot;https://www.cisa.gov/known-exploited-vulnerabilities-catalog&quot;&gt;source&lt;/a&gt;)&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;CVEs:&lt;/strong&gt; CVE-2023-29357&lt;/p&gt;</description>
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