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Vulnerability · Published Sep 27, 2020 · Assigned by mitre

CVE-2020-25814

Medium 6.1

In plain English

A medium-severity security flaw in the mediawiki package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)1.4%top 28.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an <a> tag (or it does not have a href attribute, or it's empty, etc.). The actual result is that the object contains an <a href ="javascript... that executes when clicked.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12mediawiki1:1.35.0-1DEBIAN-CVE-2020-25814
Debian:13mediawiki1:1.35.0-1DEBIAN-CVE-2020-25814
Debian:14mediawiki1:1.35.0-1DEBIAN-CVE-2020-25814
Packagistmediawiki/core1.31.9GHSA-4vr7-m8p8-434h
Packagistmediawiki/core1.34.3GHSA-4vr7-m8p8-434h
Packagistmediawiki/core1.35.0GHSA-4vr7-m8p8-434h

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References