What’s Vulnerable › Vulnerabilities

CVE-2019-19910

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-12-19 · updated 2026-06-17
• Weakness: CWE-79

Description

The MinervaNeue Skin in MediaWiki from 2019-11-05 to 2019-12-13 (1.35 and/or 1.34) mishandles certain HTML attributes, as demonstrated by IMG onmouseover= (impact is XSS) and IMG src=http (impact is disclosing the client's IP address). This can occur within a talk page topical header that is viewed within a mobile (MobileFrontend) context.

Affected products

• Wikimedia Foundation MediaWiki: 1.34, 1.35

References

• https://gerrit.wikimedia.org/r/q/Ida471291f1698387a26736931ab17e6899e05b51
• https://phabricator.wikimedia.org/T240487
• https://gerrit.wikimedia.org/r/q/Ida471291f1698387a26736931ab17e6899e05b51
• https://phabricator.wikimedia.org/T240487

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