Stored XSS via preserved event-handler markup
Published Jan 22, 2024 · Updated Jun 17, 2025
Stored cross-site scripting in the Comment Handler in LinZhaoguan pb-cms 2.0 allows remote authenticated users to inject script markup. The published proof of concept supplies a div element with an onmouseenter handler, and the application preserves it for later execution. Low-privileged access and subsequent interaction by another user are required; successful exploitation executes attacker-supplied script in that user's browser.
Summary
What happened
Stored cross-site scripting in the Comment Handler in LinZhaoguan pb-cms 2.0 allows remote authenticated users to inject script markup. The published proof of concept supplies a div element with an onmouseenter handler, and the application preserves it for later execution. Low-privileged access and subsequent interaction by another user are required; successful exploitation executes attacker-supplied script in that user's browser.
The record
- CVE
- CVE-2024-0776
- Published
- Jan 22, 2024
- Updated
- Jun 17, 2025
- Vendor
- LinZhaoguan
- Product
- pb-cms
- Classifications
- CWE-79, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 22, 2024CVE publishedPublication date reported by the CVE source.
- Jun 17, 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?
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- Affected versionversion=2.0
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- Comment Handler onmouseenter payloadproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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