Administrator script execution via unencoded action parameter
Published Dec 11, 2022 · Updated Feb 16, 2026
Reflected XSS in phpMyFAQ before 3.1.9 allows remote attackers to execute script in an administrator's browser via a crafted URL. admin/index.php accepts the action request parameter through a raw input filter, and admin/header.php renders it without HTML-entity encoding. Exploitation requires an authenticated administrator to open the crafted URL; injected script runs in the phpMyFAQ administrative origin and can access or alter data available to that session.
Summary
What happened
Reflected XSS in phpMyFAQ before 3.1.9 allows remote attackers to execute script in an administrator's browser via a crafted URL. admin/index.php accepts the action request parameter through a raw input filter, and admin/header.php renders it without HTML-entity encoding. Exploitation requires an authenticated administrator to open the crafted URL; injected script runs in the phpMyFAQ administrative origin and can access or alter data available to that session.
The record
- CVE
- CVE-2022-4407
- Published
- Dec 11, 2022
- Updated
- Feb 16, 2026
- Vendor
- Thorsten Rinne
- Product
- phpMyFAQ
- Classifications
- CWE-79, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 11, 2022CVE publishedPublication date reported by the CVE source.
- Feb 16, 2026Record 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=unspecified <3.1.9
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
- CVE-2022-4407 administrator action reflected-XSS proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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