CVE-2023-24955: Microsoft SharePoint Server Code Injection Vulnerability

CVE-2023-24955 · Severity: critical · CVSS 7.2 · Exploited in the wild · Published 2024-03-26

Microsoft SharePoint Server contains a code injection vulnerability (CWE-94) that allows an authenticated attacker with Site Owner privileges to execute code remotely on the server. The vulnerability stems from improper control of generation of code.

Technologies: Microsoft SharePoint Server. Vendors: Microsoft.

Quick answers

Is CVE-2023-24955 exploited in the wild?
Yes. CVE-2023-24955 is known to be exploited in the wild, first recorded on 26 March 2024. Treat it as urgent.
How severe is CVE-2023-24955?
Critical severity, with a CVSS score of 7.2, published 26 March 2024.
Which products and versions are affected?
Microsoft SharePoint Enterprise Server 2016 -; Microsoft SharePoint Server 2019 -; Microsoft SharePoint Server Subscription Edition -.
Is there a fix for CVE-2023-24955?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2023-24955 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2023-24955?
Check whether you run Microsoft SharePoint Server. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft SharePoint Enterprise Server 2016 -
  • Microsoft SharePoint Server 2019 -
  • Microsoft SharePoint Server Subscription Edition -

Timeline

  • 2023-05-09: disclosed: NVD Published Date
  • 2024-03-26: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2024-04-16: other: CISA Due Date for remediation

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