Stored script execution via unfiltered footer setting
Published Apr 3, 2024 · Updated Mar 17, 2025
Stored XSS in emlog Pro 2.3 allows remote attackers to execute script in a visitor's browser through the footer_info setting. The administrative settings handler passes footer_info through postStrVar() without sufficient character filtering and stores it for direct rendering at the bottom of homepage article views. A crafted value must reach the settings write path, and code runs only when a user loads affected homepage content, exposing that browser session to script-controlled data access or actions.
Summary
What happened
Stored XSS in emlog Pro 2.3 allows remote attackers to execute script in a visitor's browser through the footer_info setting. The administrative settings handler passes footer_info through postStrVar() without sufficient character filtering and stores it for direct rendering at the bottom of homepage article views. A crafted value must reach the settings write path, and code runs only when a user loads affected homepage content, exposing that browser session to script-controlled data access or actions.
The record
- CVE
- CVE-2024-31013
- Published
- Apr 3, 2024
- Updated
- Mar 17, 2025
- Vendor
- emlog
- Product
- emlog
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 3, 2024CVE publishedPublication date reported by the CVE source.
- Mar 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.3
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
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
- emlog footer_info stored-XSS proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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