CVE-2019-19910 — MEDIUM (6.1)

Vulnerability 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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Mediawiki	Mediawiki	1.34

Related Weaknesses (CWE)

CWE-79

References

https://gerrit.wikimedia.org/r/q/Ida471291f1698387a26736931ab17e6899e05b51PatchVendor Advisory
https://phabricator.wikimedia.org/T240487Third Party Advisory
https://gerrit.wikimedia.org/r/q/Ida471291f1698387a26736931ab17e6899e05b51PatchVendor Advisory
https://phabricator.wikimedia.org/T240487Third Party Advisory

FAQ

What is CVE-2019-19910?

CVE-2019-19910 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 d...

How severe is CVE-2019-19910?

CVE-2019-19910 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-19910?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.