XSS in Xwiki Xwiki-rendering
CVE-2025-53835
XWiki Rendering is a generic rendering system that converts textual input in a given syntax (wiki syntax, HTML, etc) into another syntax (XHTML, etc). Starting in version 5.4.5 and prior to version 14.10, the XHTML syntax depended on the `…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.038 (88.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Xwiki Xwiki-rendering — versions >= 5.4.5, < 14.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-w3wh-g4m9-783p (x_refsource_CONFIRM)
- https://github.com/xwiki/xwiki-rendering/commit/a4ca31f99f524b9456c64150d6f375984aa81ea7 (x_refsource_MISC)
- https://jira.xwiki.org/browse/XRENDERING-660 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-53835?
- CVE-2025-53835 is a critical-severity vulnerability in Xwiki Xwiki-rendering, classified under Cross-site Scripting. CVSS score: 9.1/10. Published 2025-07-14.
- How severe is CVE-2025-53835?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2025-53835 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.