Quick answers
- Is CVE-2026-47636 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-47636 being exploited in the wild.
- How severe is CVE-2026-47636?
- 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-2026-47636?
- 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-2026-47636 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-47636?
- 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 (CWE-79). An attacker can exploit this by sending a specially crafted request to a vulnerable SharePoint server. While the attack is delivered over the network, it requires user interaction, such as a victim clicking a malicious link. Successful exploitation allows the attacker to execute arbitrary script code in the context of the victim's browser, potentially leading to session hijacking or unauthorized data disclosure. The vulnerability is tracked as CVE-2026-47636 and has a CVSS 3.1 base score of 5.4.
Affected products
- Microsoft Office SharePoint
Timeline
- 2026-06-09: disclosed: Initial publication of the CVE record.
- 2026-06-09: advisory: Microsoft released the security update guide for this vulnerability.