CVE-2024-31981: xwiki Auth Bypass — Exploit & Fix

Description

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.

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CVSS v3.1 Score

9.9

CRITICAL

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

Weakness Type (CWE)

CWE-862 Missing Authorization

Affected Products

Vendor	Product	Versions
xwiki	xwiki	3.0.1 — 14.10.19
xwiki	xwiki	15.0 — 15.5.4
xwiki	xwiki	15.6 — 15.9

References

Advisories & Patches

https://github.com/xwiki/xwiki-platform/commit/480186f9d2fca880513da8bc5a609674d106cbd3 https://github.com/xwiki/xwiki-platform/commit/a4ad14d9c1605a5ab957237e505ebbb29f5b9d73 https://github.com/xwiki/xwiki-platform/commit/d28e21a670c69880b951e415dd2ddd69d273eae9 https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-vxwr-wpjv-qjq7 https://jira.xwiki.org/browse/XWIKI-21337 https://github.com/xwiki/xwiki-platform/commit/480186f9d2fca880513da8bc5a609674d106cbd3 https://github.com/xwiki/xwiki-platform/commit/a4ad14d9c1605a5ab957237e505ebbb29f5b9d73 https://github.com/xwiki/xwiki-platform/commit/d28e21a670c69880b951e415dd2ddd69d273eae9 https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-vxwr-wpjv-qjq7 https://jira.xwiki.org/browse/XWIKI-21337

Exploits

https://jira.xwiki.org/browse/XWIKI-21337 https://jira.xwiki.org/browse/XWIKI-21337

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 9.9 (CRITICAL).

How severe is CVE-2024-31981? +

CVE-2024-31981 has a CVSS v3.1 score of 9.9 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-31981? +

CVE-2024-31981 affects products from xwiki, specifically: xwiki. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-31981? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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