CVE-2025-53835

CRITICAL EPSS 24.2%
Published Jul 14, 202511mo ago · Modified Jun 17, 20261w ago
9.0 CVSS 3.1
Critical
Find Similar
Published Jul 14, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 `xdom+xml/current` syntax which allows the creation of raw blocks that permit the insertion of arbitrary HTML content including JavaScript. This allows XSS attacks for users who can edit a document like their user profile (enabled by default). This has been fixed in version 14.10 by removing the dependency on the `xdom+xml/current` syntax from the XHTML syntax. Note that the `xdom+xml` syntax is still vulnerable to this attack. As it's main purpose is testing and its use is quite difficult, this syntax shouldn't be installed or used on a regular wiki. There are no known workarounds apart from upgrading.

CVSS Details

Base Score
9.0
Exploitability
2.3
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
24.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-79 Cross-site Scripting Injection
CWE-80

Affected Products 1

VendorProductVersionRange
xwikixwiki*≥5.4.5  –  <14.10

References 3

  • github.com https://github.com/xwiki/xwiki-rendering/commit/a4ca31f99f524b9456c64150d6f375984aa81ea7
    Patch
  • github.com https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-w3wh-g4m9-783p
    PatchThird Party Advisory
  • jira.xwiki.org https://jira.xwiki.org/browse/XRENDERING-660
    Issue Tracking

Remediation

  • github.com https://github.com/xwiki/xwiki-rendering/commit/a4ca31f99f524b9456c64150d6f375984aa81ea7
    Patch
  • github.com https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-w3wh-g4m9-783p
    PatchThird Party Advisory