Quick answers
- Is CVE-2026-48560 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-48560 being exploited in the wild.
- How severe is CVE-2026-48560?
- Medium severity, with a CVSS score of 5.4, published 9 June 2026.
- Which products and versions are affected?
- Microsoft Office SharePoint.
- Is there a fix for CVE-2026-48560?
- 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-2026-48560 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-48560?
- Check whether you run Microsoft SharePoint. 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
A cross-site scripting (XSS) vulnerability exists in Microsoft Office SharePoint due to improper neutralization of input during web page generation. An attacker with low-level authenticated privileges (PR:L) can exploit this flaw over the network without requiring user interaction (UI:N). While the Microsoft advisory also references CWE-502 (Deserialization of Untrusted Data), the primary impact described is spoofing via XSS. Successful exploitation allows the attacker to compromise the integrity and confidentiality of the session, potentially leading to unauthorized actions performed in the context of other users.
Affected products
- Microsoft Office SharePoint
Timeline
- 2026-06-09: advisory: Microsoft published the security advisory.