CVE-2024-40602Network attack vector

Stored XSS via unescaped sidebar section identifier

Published Jul 6, 2024 · Updated Mar 14, 2025

Stored XSS in MediaWiki's Tempo skin through 1.42.1 allows remote authenticated users to execute script in visitors' browsers. Tempo.skin.php places the top-level sidebar box identifier into a section id attribute without HTML-escaping quotation marks. The malicious entry must be stored in MediaWiki:Sidebar, and execution requires a visitor to load a page rendered with the Tempo skin.

CVSS severity4.8
Medium
EPSS probability0.28%
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 MediaWiki's Tempo skin through 1.42.1 allows remote authenticated users to execute script in visitors' browsers. Tempo.skin.php places the top-level sidebar box identifier into a section id attribute without HTML-escaping quotation marks. The malicious entry must be stored in MediaWiki:Sidebar, and execution requires a visitor to load a page rendered with the Tempo skin.

The record

CVE
CVE-2024-40602
Published
Jul 6, 2024
Updated
Mar 14, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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