What is CVE-2024-31981?

CVE-2024-31981 is a critical-severity vulnerability in Xwiki, classified under Missing Authorization. CVSS score: 9.9/10. Published 2024-04-10.

How severe is CVE-2024-31981?

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

Is CVE-2024-31981 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Xwiki

CVE-2024-31981

XWiki Platform is a generic wiki platform. Starting in version 3.0.1 and prior to versions 4.10.20, 15.5.4, and 15.10-rc-1, remote code execution is possible via PDF export templates. This vulnerability has been patched in XWiki 14.10.20, 15.5.4 and 15.10-rc-1. If PDF templates are not typically used on the instance, an administrator can create the document `XWiki.PDFClass` and block its edition, after making sure that it does not contain a `style` attribute. Otherwise, there are no known workarounds aside from upgrading.

Vulnerability class: Broken Access Control

Published 2024-04-10 · 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: 0.014 (72.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Xwiki
Xwiki Xwiki-Platform — versions >= 3.0.1, < 14.10.20, >= 15.0-rc-1, < 15.5.4, >= 15.6-rc-1, < 15.10-rc-1

Weakness classification (CWE)

CWE-862 — Missing Authorization

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

github.com/xwiki/xwiki-platform/security/advisories/GHSA-vxwr-wpjv-qjq7 (Vendor Advisory)
github.com/xwiki/xwiki-platform/commit/480186f9d2fca880513da8bc5a609674d106cbd3 (Patch)
github.com/xwiki/xwiki-platform/commit/a4ad14d9c1605a5ab957237e505ebbb29f5b9d73 (Patch)
github.com/xwiki/xwiki-platform/commit/d28e21a670c69880b951e415dd2ddd69d273eae9 (Patch)
jira.xwiki.org/browse/XWIKI-21337 (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2024-31981?: CVE-2024-31981 is a critical-severity vulnerability in Xwiki, classified under Missing Authorization. CVSS score: 9.9/10. Published 2024-04-10.
How severe is CVE-2024-31981?: Critical severity. CVSS v3 base score is 9.9 out of 10.
Is CVE-2024-31981 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.