Cross-site Scripting (XSS) Affecting mediawiki package, versions <1:1.15.5-3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
2.35% (82nd percentile)

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  • Snyk IDSNYK-ECHOLATEST-MEDIAWIKI-20414164
  • published3 Oct 2026
  • disclosed4 Feb 2011

Introduced: 4 Feb 2011

CVE-2011-0047  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Echo:latest mediawiki to version 1:1.15.5-3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mediawiki package and not the mediawiki package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.16.2 allows remote attackers to inject arbitrary web script or HTML via crafted Cascading Style Sheets (CSS) comments, aka "CSS injection vulnerability."

CVSS Base Scores

version 3.1