The lesscss script service allows cache clearing without programming right

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

2.7 · CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

EPSS

• CVE-2025-32972: 0.52% estimated exploitation activity in the next 30 days; percentile 44.34 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact 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. Patches This has been patched in XWiki 15.10.12, 16.4.3 and 16.8.0 RC1. Workarounds We're not aware of any workaround except for being careful whom to give script right, which is a general recommendation.

Published by the source

29 Apr 2025, 14:01 UTC

Last modified by the source

30 Apr 2025, 17:29 UTC

Source last checked

26 Oct 2026, 16:35 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-rp38-24m3-rx87

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# Patch Next advisory brief: CVE-2025-32972

Advisory: The lesscss script service allows cache clearing without programming right
IDs: CVE-2025-32972, GHSA-rp38-24m3-rx87
Record: https://patchnext.com/advisories/cve-2025-32972 (revision 1, source checked 26 Oct 2026, 16:35 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 2.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.xwiki.platform:xwiki-platform-lesscss-script 16.8.0-rc-1, 16.4.3, 15.10.12. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.xwiki.platform:xwiki-platform-lesscss-script: affected >= 6.1-milestone-1, < 15.10.12; >= 16.0.0-rc-1, < 16.4.3; >= 16.5.0-rc-1, < 16.8.0-rc-1; fixed in 16.4.3, 16.8.0-rc-1, 15.10.12

## Suggested inspection (read-only)
- Maven org.xwiki.platform:xwiki-platform-lesscss-script: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.xwiki.platform:xwiki-platform-lesscss-script.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-rp38-24m3-rx87 (GitHub-reviewed advisory GHSA-rp38-24m3-rx87 lists affected ranges: Maven org.xwiki.platform:xwiki-platform-lesscss-script >=6.1-milestone-1 =16.0.0-rc-1 =16.5.0-rc-1 <16.8.0-rc-1)

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