CVE-2026-14358: Stored XSS in Wikimedia Chart pie tooltip via Data:*.tab field title

Published Jul 1, 2026
·
Updated

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Charts Extension allows Cross-Site Scripting (XSS).

This issue affects Mediawiki - Charts Extension: from before 1.43.9,1.44.6,1.45.4.

Affected Software

4 affected components
Wikimedia Foundation Mediawiki - Charts Extension>1.43.9<1.44.6, >1.44.6<1.45.4, <=1.43.9, <=1.44.6, <=1.45.4
MediaWiki MediaWiki>=1.43.0<1.43.9
MediaWiki MediaWiki>=1.44.0<1.44.6
MediaWiki MediaWiki>=1.45.0<1.45.4

Event History

Jul 1, 2026
CVE Published
via MITRE·06:48 PM
Data Sourced
via MITRE·06:48 PM
DescriptionWeakness
Data Sourced
via NVD·07:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-14358?

The severity of CVE-2026-14358 is rated as medium with a CVSS score of 6.9.

2

What type of vulnerability is identified in CVE-2026-14358?

CVE-2026-14358 identifies a Stored Cross-Site Scripting (XSS) vulnerability.

3

How do I fix CVE-2026-14358?

To fix CVE-2026-14358, upgrade the Mediawiki - Charts Extension to a version equal to or greater than 1.43.9, 1.44.6, or 1.45.4.

4

Which software is affected by CVE-2026-14358?

CVE-2026-14358 affects The Wikimedia Foundation Mediawiki - Charts Extension.

5

When was CVE-2026-14358 published?

CVE-2026-14358 was published on July 1, 2026.

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