Quick answers
- Is CVE-2026-69690 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-69690 being exploited in the wild.
- How severe is CVE-2026-69690?
- Medium severity, with a CVSS score of 4.6, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Office SharePoint.
- Is there a fix for CVE-2026-69690?
- 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-2026-69690 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-69690?
- Check whether you run Microsoft Office SharePoint or 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.
Technical details
This is a cross-site scripting (XSS) vulnerability in Microsoft Office SharePoint's web page generation functionality. The vulnerability exists because user-supplied input is not properly sanitized before being rendered in web pages. An authorized attacker with valid credentials can exploit this flaw by injecting malicious scripts that will execute in the browsers of other users. The attack requires the attacker to have valid account access to SharePoint. An attacker could perform spoofing attacks, steal session cookies, manipulate page content, or redirect users to malicious sites.
Affected products
- Microsoft Office SharePoint
Timeline
- 2026-09-08: disclosed