Vulnerabilites related to Wikimedia Foundation - Mediawiki - CheckUser extension
CVE-2025-53479 (GCVE-0-2025-53479)
Vulnerability from cvelistv5
Published
2025-07-08 17:16
Modified
2025-07-10 13:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Summary
The CheckUser extension’s Special:CheckUser interface is vulnerable to reflected XSS via the rev-deleted-user message. This message is rendered without proper escaping, making it possible to inject JavaScript through the uselang=x-xss language override mechanism.
This issue affects Mediawiki - CheckUser extension: from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Wikimedia Foundation | Mediawiki - CheckUser extension |
Version: 1.42.x ≤ Version: 1.43.x ≤ |
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"confidentialityImpact": "LOW",
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"version": "2.0.3"
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"title": "CISA ADP Vulnrichment"
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CVE-2025-53478 (GCVE-0-2025-53478)
Vulnerability from cvelistv5
Published
2025-07-07 18:16
Modified
2025-07-07 20:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Summary
The CheckUser extension’s Special:Investigate interface is vulnerable to reflected XSS due to improper escaping of certain internationalized system messages rendered on the “IPs and User agents” tab.
This issue affects Mediawiki - CheckUser extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Wikimedia Foundation | Mediawiki - CheckUser extension |
Version: 1.39.x ≤ Version: 1.42.x ≤ Version: 1.43.x ≤ |
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"integrityImpact": "LOW",
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"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
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CVE-2025-53480 (GCVE-0-2025-53480)
Vulnerability from cvelistv5
Published
2025-07-08 14:58
Modified
2025-07-08 20:44
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Summary
The CheckUser extension’s Special:Investigate page has a vulnerability in the Account information tab, where specific internationalized messages are rendered without proper escaping. Attackers can exploit this by appending ?uselang=x-xss to the URL, causing reflected XSS when the UI renders affected message keys.
This issue affects Mediawiki - CheckUser extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Wikimedia Foundation | Mediawiki - CheckUser extension |
Version: 1.39.x ≤ Version: 1.42.x ≤ Version: 1.43.x ≤ |
{
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"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
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],
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"title": "CISA ADP Vulnrichment"
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}
],
"impacts": [
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