Microsoft SharePoint Server Code Injection Vulnerability (CVE-2023-24955)
Severity: high · Patch status: patched · Since 2024-03-26 · CVE-2023-24955
Microsoft SharePoint Server contains a code injection vulnerability that allows an authenticated attacker with Site Owner privileges to execute code remotely. CISA added CVE-2023-24955 to its Known Exploited Vulnerabilities catalog on Mar 26, 2024, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Apr 16, 2024 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
