XSS in Mediawiki

CVE-2012-4378

Multiple cross-site scripting (XSS) vulnerabilities in MediaWiki before 1.18.5 and 1.19.x before 1.19.2, when unspecified JavaScript gadgets are used, allow remote attackers to inject arbitrary web script or HTML via the userlang parameter to w/index.php.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.015 (72.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

  • Mediawiki — versions 1.19.0, 1.19.1
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2012-4378?
CVE-2012-4378 is a medium-severity vulnerability in Mediawiki, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-10-26.
How severe is CVE-2012-4378?
Medium severity. CVSS v3 base score is 6.1 out of 10.