What is CVE-2023-36469?

CVE-2023-36469 is a critical-severity vulnerability in Xwiki, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.9/10. Published 2023-06-29.

How severe is CVE-2023-36469?

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

Vulnerability in Xwiki

CVE-2023-36469

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user who can edit their own user profile and notification settings can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This has been patched in XWiki 14.10.6 and 15.2RC1. Users are advised to update. As a workaround the main security fix can be manually applied by patching the affected document `XWiki.Notifications.Code.NotificationRSSService`. This will break the link to the differences, though as this requires additional changes to Velocity templates as shown in the patch. While the default template is available in the instance and can be easily patched, the template for mentions is contained in a `.jar`-file and thus cannot be fixed without replacing that jar.

Published 2023-06-29 · 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:H.

EPSS exploit prediction

EPSS: 0.820 (99.7th percentile), scored 2026-10-29.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.820 · newest: 0.820 · change: 0.000

Affected products

Xwiki — versions 15.0, 15.1
Xwiki Xwiki-Platform — versions >= 9.6-rc-1, < 14.10.6, >= 15.0-rc-1, < 15.2-rc-1

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

github.com/xwiki/xwiki-platform/security/advisories/GHSA-94pf-92hw-2hjc (Exploit, Patch, Vendor Advisory)
github.com/xwiki/xwiki-platform/commit/217e5bb7a657f2991b154a16ef4d5ae9c29ad39c (Patch)
github.com/xwiki/xwiki-platform/commit/217e5bb7a657f2991b154a16ef4d5ae9c29ad39c (Patch)
github.com/xwiki/xwiki-platform/commit/217e5bb7a657f2991b154a16ef4d5ae9c29ad39c (Patch)
jira.xwiki.org/browse/XWIKI-20610 (Exploit, Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2023-36469?: CVE-2023-36469 is a critical-severity vulnerability in Xwiki, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.9/10. Published 2023-06-29.
How severe is CVE-2023-36469?: Critical severity. CVSS v3 base score is 9.9 out of 10.