Quick answers
- Is CVE-2026-63171 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-63171 being exploited in the wild.
- How severe is CVE-2026-63171?
- Medium severity, with a CVSS score of 5.4, published 13 October 2026.
- Which products and versions are affected?
- Omnispace Agora Project before 26.10.0.
- Is there a fix for CVE-2026-63171?
- Yes: fixed in 26.10.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-63171 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-63171?
- Check whether you run Omnispace Agora Project at an affected version. 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.
How to fix
- Fixed in: 26.10.0
Technical details
A stored cross-site scripting vulnerability in Agora Project before version 26.10.0 allows authenticated users to break out of an HTML input value attribute by submitting a double-quote character in a forum category description. The vulnerability exists because HTMLPurifier is configured to preserve double-quotes, enabling attackers to escape the attribute context and inject arbitrary JavaScript. The injected script persists and executes in the browsers of users viewing the affected forum category.
Affected products
- Omnispace Agora Project before 26.10.0
Timeline
- 2026-10-13: advisory