What is CVE-2023-40177?

CVE-2023-40177 is a critical-severity vulnerability in Xwiki, classified under Eval Injection. CVSS score: 9.9/10. Published 2023-08-23.

How severe is CVE-2023-40177?

Critical severity. CVSS v3 base score is 9.9 out of 10.

RCE in Xwiki

CVE-2023-40177

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any registered user can use the content field of their user profile page to execute arbitrary scripts with programming rights, thus effectively performing rights escalation. This issue is present since version 4.3M2 when AppWithinMinutes Application added support for the Content field, allowing any wiki page (including the user profile page) to use its content as an AWM Content field, which has a custom displayer that executes the content with the rights of the ``AppWithinMinutes.Content`` author, rather than the rights of the content author. The vulnerability has been fixed in XWiki 14.10.5 and 15.1RC1. The fix is in the content of the AppWithinMinutes.Content page that defines the custom displayer. By using the ``display`` script service to render the content we make sure that the proper author is used for access rights checks.

Published 2023-08-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.011 (63.4th percentile), scored 2026-10-08.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Xwiki — versions 4.3, 15.0
Xwiki Xwiki-Platform — versions >= 4.3-milestone-2, < 14.10.5

Weakness classification (CWE)

References

github.com/xwiki/xwiki-platform/security/advisories/GHSA-5mf8-v43w-mfxp (Patch, Mitigation, Vendor Advisory)
github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262 (Patch)
jira.xwiki.org/browse/XWIKI-7369 (Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2023-40177?: CVE-2023-40177 is a critical-severity vulnerability in Xwiki, classified under Eval Injection. CVSS score: 9.9/10. Published 2023-08-23.
How severe is CVE-2023-40177?: Critical severity. CVSS v3 base score is 9.9 out of 10.