Stored XSS via unescaped system message
Published Jul 7, 2025 · Updated Jul 31, 2025
Stored XSS in MediaSearch 1.42.x before 1.42.7 and 1.43.x before 1.43.2 allows remote authenticated users to execute script. A MediaSearch system message is inserted into the page as HTML without neutralizing attacker-controlled markup, so stored script executes when rendered. Exploitation requires privileges to modify the affected message and a victim to load the rendered interface, enabling browser-context data access or page modification.
Summary
What happened
Stored XSS in MediaSearch 1.42.x before 1.42.7 and 1.43.x before 1.43.2 allows remote authenticated users to execute script. A MediaSearch system message is inserted into the page as HTML without neutralizing attacker-controlled markup, so stored script executes when rendered. Exploitation requires privileges to modify the affected message and a victim to load the rendered interface, enabling browser-context data access or page modification.
The record
- CVE
- CVE-2025-53496
- Published
- Jul 7, 2025
- Updated
- Jul 31, 2025
- Vendor
- Wikimedia Foundation
- Product
- MediaSearch
- Classifications
- CWE-79, CAPEC-592, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 7, 2025CVE publishedPublication date reported by the CVE source.
- Jul 31, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.42.x <1.42.7
- Affected versionversion=1.43.x <1.43.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
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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