CVE-2023-29516

Name: CVE-2023-29516
Creator: NVD / NIST
Published: 2023-04-19T00:15:08.423+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 65.87%

Last modified Jun 17, 2026

CVE-2023-29516 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 65.87% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

65.87%

99.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Xwiki	Xwiki	< 13.10.11
Xwiki	Xwiki	>= 14.0, < 14.4.8
Xwiki	Xwiki	>= 14.5, < 14.10.1

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

Timeline

Published: Apr 19, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-29516?

How severe is CVE-2023-29516?

CVE-2023-29516 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 65.87% probability of exploitation in the next 30 days.

How do I fix CVE-2023-29516?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-29516?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST