CVE-2025-32972

The lesscss script service allows cache clearing without programming right

Workarounds

We're not aware of any workaround except for being careful whom to give script right, which is a general recommendation.

The script API of the LESS compiler in XWiki is incorrectly checking for rights when calling the cache cleaning API, making it possible to clean the cache without having programming right. The only impact of this is a slowdown in XWiki execution as the caches are re-filled. As this vulnerability requires script right to exploit, and script right already allows unlimited execution of scripts, the additional impact due to this vulnerability is low.

CVE-2025-32972 has a CVSS score of 2.7 (Low). The vector is network-reachable, high privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (15.10.12, 16.4.3, 16.8.0-rc-1); upgrading removes the vulnerable code path.

Kodem intelligence

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This has been patched in XWiki 15.10.12, 16.4.3 and 16.8.0 RC1.

1. What is CVE-2025-32972? CVE-2025-32972 is a low-severity security vulnerability in org.xwiki.platform:xwiki-platform-lesscss-script (maven), affecting versions >= 6.1-milestone-1, < 15.10.12. It is fixed in 15.10.12, 16.4.3, 16.8.0-rc-1.
2. How severe is CVE-2025-32972? CVE-2025-32972 has a CVSS score of 2.7 (Low). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of org.xwiki.platform:xwiki-platform-lesscss-script are affected by CVE-2025-32972? org.xwiki.platform:xwiki-platform-lesscss-script (maven) versions >= 6.1-milestone-1, < 15.10.12 is affected.
4. Is there a fix for CVE-2025-32972? Yes. CVE-2025-32972 is fixed in 15.10.12, 16.4.3, 16.8.0-rc-1. Upgrade to this version or later.
5. Is CVE-2025-32972 exploitable, and should I be worried? Whether CVE-2025-32972 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2025-32972 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2025-32972?
   • Upgrade org.xwiki.platform:xwiki-platform-lesscss-script to 15.10.12 or later
   • Upgrade org.xwiki.platform:xwiki-platform-lesscss-script to 16.4.3 or later
   • Upgrade org.xwiki.platform:xwiki-platform-lesscss-script to 16.8.0-rc-1 or later