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CVE-2026-103437

ReadingLists imported metadata permits JavaScript URL XSS

CVSS 4.0 1.1 LOWCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-103437

Published

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki ReadingLists extension allows Reflected XSS. This issue affects MediaWiki ReadingLists extension: 1.46 and 1.45.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-103437

Published

MediaWiki ReadingLists extension

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "The Wikimedia Foundation",
                    "product": "MediaWiki ReadingLists extension",
                    "repo": "https://gerrit.wikimedia.org/r/mediawiki/extensions/ReadingLists",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.46"
                        },
                        {
                            "status": "affected",
                            "version": "1.45"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON