cve.bz

CVE-2023-26477

9.8 criticalEPSS 75%

Critical (9.8) in xwiki xwiki. EPSS 75% chance of exploitation in the next 30 days. Fixed in org.xwiki.platform:xwiki-platform-flamingo-theme-ui 13.10.10, 14.4.6, 14.9-rc-1.

XWiki Platform is a generic wiki platform. Starting in versions 6.3-rc-1 and 6.2.4, it's possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the `newThemeName` request parameter (URL parameter), in combination with additional parameters. This has been patched in the supported versions 13.10.10, 14.9-rc-1, and 14.4.6. As a workaround, it is possible to edit `FlamingoThemesCode.WebHomeSheet` and manually perform the changes from the patch fixing the issue.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
75% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CWEs
CWE-94, CWE-95
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-x2qm-r4wx-8gpgMavenorg.xwiki.platform:xwiki-platform-flamingo-theme-ui>=6.2.4 <13.10.1013.10.10
GHSA-x2qm-r4wx-8gpgMavenorg.xwiki.platform:xwiki-platform-flamingo-theme-ui>=14.0 <14.4.614.4.6
GHSA-x2qm-r4wx-8gpgMavenorg.xwiki.platform:xwiki-platform-flamingo-theme-ui>=14.5 <14.9-rc-114.9-rc-1

References

Check your stackJSON