CVE-2023-29516
Any user with view rights on `XWiki.AttachmentSelector` can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 65.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with view rights on `XWiki.AttachmentSelector` can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping in the "Cancel and return to page" button. This page is installed by default. This vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11. There are no known workarounds for this vulnerability.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 65.87% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-74
- Affected
- xwiki/xwiki
- Source
- security-advisories@github.com
EPSS 65.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/xwiki/xwiki-platform/commit/aca1d677c58563bbe6e35c9e1c29fd8b12ebb996Patch
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-3989-4c6x-725fExploit, Patch, Vendor Advisory
- https://jira.xwiki.org/browse/XWIKI-20275Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/xwiki/xwiki-platform/commit/aca1d677c58563bbe6e35c9e1c29fd8b12ebb996Patch
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-3989-4c6x-725fExploit, Patch, Vendor Advisory
- https://jira.xwiki.org/browse/XWIKI-20275Exploit, Issue Tracking, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.