Vulnerability DatabaseCVE-2026-85586
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CVE-2026-85586
Published:September 04, 2026
Updated:September 22, 2026
phpMyFAQ versions before 4.1.8 fail to validate CAPTCHA when the store parameter is set to 'now' in question submission requests. Unauthenticated attackers can bypass CAPTCHA protection and submit unlimited questions directly, causing database pollution and triggering outgoing mail notifications.
Affected Packages
phpmyfaq/phpmyfaq (PHP):
Affected version(s) >=2.8.0 <4.1.8
Fix Suggestion:
Update to version 4.1.8
Related Resources (4)
https://nvd.nist.gov/vuln/detail/CVE-2026-85586
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-72vj-pvm4-mm7x
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85586.json
https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-captcha-bypass-via-store-parameter
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Control of Interaction Frequency
CWE-799
EPSS
Base Score:
0.36