CVE-2024-23174: mediawiki XSS — Exploit & Fix

Description

An issue was discovered in the PageTriage extension in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. XSS can occur via the rev-deleted-user, pagetriage-tags-quickfilter-label, pagetriage-triage, pagetriage-filter-date-range-format-placeholder, pagetriage-filter-date-range-to, pagetriage-filter-date-range-from, pagetriage-filter-date-range-heading, pagetriage-filter-set-button, or pagetriage-filter-reset-button message.

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CVSS v3.1 Score

5.4

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
mediawiki	mediawiki	< 1.35.14
mediawiki	mediawiki	1.36.0 — 1.39.6
mediawiki	mediawiki	1.40.0 — 1.40.2

References

Advisories & Patches

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/PageTriage/+/989177 https://phabricator.wikimedia.org/T347704 https://gerrit.wikimedia.org/r/c/mediawiki/extensions/PageTriage/+/989177 https://phabricator.wikimedia.org/T347704

Exploits

https://phabricator.wikimedia.org/T347704 https://phabricator.wikimedia.org/T347704

Frequently Asked Questions

What is CVE-2024-23174? +

An issue was discovered in the PageTriage extension in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. XSS can occur via the rev-deleted-user, pagetriage-tags-quickfilter-label, pagetriage-triage, pagetriage-filter-date-range-format-placeholder, pagetriage-filter-date-range-to, pagetriage-filter-date-range-from, pagetriage-filter-date-range-heading, pagetriage-filter-set-button, or pagetriage-filter-reset-button message. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2024-23174? +

CVE-2024-23174 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-23174? +

CVE-2024-23174 affects products from mediawiki, specifically: mediawiki. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-23174? +

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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CVE-2024-23174