What is CVE-2024-34507?

CVE-2024-34507 is a high-severity vulnerability in Mediawiki, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 7.4/10. Published 2024-05-05.

How severe is CVE-2024-34507?

High severity. CVSS v3 base score is 7.4 out of 10.

XSS in Mediawiki

CVE-2024-34507

An issue was discovered in includes/CommentFormatter/CommentParser.php in MediaWiki before 1.39.7, 1.40.x before 1.40.3, and 1.41.x before 1.41.1. XSS can occur because of mishandling of the 0x1b character, as demonstrated by Special:RecentChanges#%1b0000000.

EPSS: 0.007 (48.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N.

Affected products

Mediawiki
Fedoraproject Fedora — versions 40
N/a — versions n/a

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

cve@mitre.org (Exploit, Issue Tracking, Vendor Advisory)
cve@mitre.org (vendor-advisory, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2024-34507?: CVE-2024-34507 is a high-severity vulnerability in Mediawiki, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 7.4/10. Published 2024-05-05.
How severe is CVE-2024-34507?: High severity. CVSS v3 base score is 7.4 out of 10.