CVE catalog

CVE-2013-4303

mediawiki: CVE-2013-4303

Severity: Low
Published: Sep 3, 2013, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.53% · Oct 27, 2026

includes/libs/IEUrlExtension.php in the MediaWiki API in MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 does not properly detect extensions when there are an even number of "." (period) characters in a string, which allows remote attackers to conduct cross-site scripting (XSS) attacks via the siprop parameter in a query action to wiki/api.php.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	mediawiki	sid	`1:1.43.11+dfsg-3`	fixed
Debian	mediawiki	forky	`1:1.43.11+dfsg-1`	fixed
Debian	mediawiki	trixie	`1:1.43.9+dfsg-1~deb13u1`	fixed
Debian	mediawiki	trixie-security	`1:1.43.9+dfsg-1~deb13u1`	fixed
Debian	mediawiki	bookworm	`1:1.39.17-1+deb12u2`	fixed
Debian	mediawiki	bookworm-security	`1:1.39.17-1+deb12u2`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	mediawiki	source	sid	`1:1.19.8+dfsg-1`	unimportant	Not reported	Not reported
Debian	mediawiki	source	forky	`1:1.19.8+dfsg-1`	unimportant	Not reported	Not reported
Debian	mediawiki	source	trixie	`1:1.19.8+dfsg-1`	unimportant	Not reported	Not reported
Debian	mediawiki	source	bookworm	`1:1.19.8+dfsg-1`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[mediawiki]Unknown
Details (4)
- 1:1.39.17-1+deb12u2 · all · bookworm
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm-security
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm-security
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
[mediawiki-classes]Unknown
Source package: [mediawiki]
Details (4)
- 1:1.39.17-1+deb12u2 · all · bookworm
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm-security
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12
- 1:1.39.17-1+deb12u2 · all · bookworm-security
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · bookworm; dsa · mediawiki · debian · 12

[Debian 13 (Trixie)]

[mediawiki]Unknown
Details (4)
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · 13
[mediawiki-classes]Unknown
Source package: [mediawiki]
Details (4)
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · 13
- 1:1.43.9+dfsg-1~deb13u1 · all · trixie-security
  Fixed · Fixed: 1:1.19.8+dfsg-1
  dsa · mediawiki · debian · 13

Observed: Oct 23, 2026, 5:08:34 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]