Medium severity · published Sep 4, 2026
CVE-2026-85586
phpMyFAQ before 4.1.8 CAPTCHA Bypass via store parameter
6.9
CVSS
0.5%
EPSS
No
On KEV
Description
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
phpMyFAQ · thorsten
before 4.1.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85586
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85586
github.com
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-72vj-pvm4-mm7x
www.vulncheck.com
https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-captcha-bypass-via-store-parameter
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