Subscriber-level stored XSS via unescaped user notes
Published Apr 24, 2023 · Updated Feb 4, 2025
Stored XSS in WP FEvents Book 0.46 and earlier allows remote authenticated users to execute scripts through event-page user notes. The User notes field accepts attacker-controlled HTML without sanitization or output escaping and stores it for later display. Subscriber access is sufficient to plant the payload; script execution occurs when another user opens the affected event page, exposing that user's browser session to attacker-controlled actions.
Summary
What happened
Stored XSS in WP FEvents Book 0.46 and earlier allows remote authenticated users to execute scripts through event-page user notes. The User notes field accepts attacker-controlled HTML without sanitization or output escaping and stores it for later display. Subscriber access is sufficient to plant the payload; script execution occurs when another user opens the affected event page, exposing that user's browser session to attacker-controlled actions.
The record
- CVE
- CVE-2023-1126
- Published
- Apr 24, 2023
- Updated
- Feb 4, 2025
- Vendor
- faina09
- Product
- WP FEvents Book
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 24, 2023CVE publishedPublication date reported by the CVE source.
- Feb 4, 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=0 <=0.46
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
- WPScan User notes 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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