CVE-2025-7363Public exploitNetwork attack vector

Stored XSS via unsanitized title icon rendering

Published Jul 8, 2025 · Updated Jul 10, 2025

Stored XSS in Wikimedia Foundation MediaWiki Title Icon allows remote authenticated users to run JavaScript through crafted page content. IconManager wraps the #titleicon_unicode value in HtmlArmor without sanitization or validation, then renders it into page headings and search results. The affected ranges are 1.39.x before 1.39.13, 1.42.x before 1.42.7, and 1.43.x before 1.43.2; page-edit permission and a victim page view are required.

CVSS severity5.4
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Wikimedia Foundation MediaWiki Title Icon allows remote authenticated users to run JavaScript through crafted page content. IconManager wraps the #titleicon_unicode value in HtmlArmor without sanitization or validation, then renders it into page headings and search results. The affected ranges are 1.39.x before 1.39.13, 1.42.x before 1.42.7, and 1.43.x before 1.43.2; page-edit permission and a victim page view are required.

The record

CVE
CVE-2025-7363
Published
Jul 8, 2025
Updated
Jul 10, 2025
Vendor
Wikimedia Foundation
Product
MediaWiki Title Icon
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.39.x <1.39.13
  2. Affected versionversion=1.42.x <1.42.7
  3. Affected versionversion=1.43.x <1.43.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Wikimedia Foundation · MediaWiki Title Iconversion=1.39.x <1.39.13; version=1.42.x <1.42.7; version=1.43.x <1.43.2

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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