# CVE-2026-85586

## Summary

- **CVE ID:** CVE-2026-85586
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-799
- **Published:** Sep 4, 2026
- **Last Modified:** Sep 10, 2026

## 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.

## Affected Products

- thorsten — phpMyFAQ (0)
- thorsten — phpMyFAQ (4.1.8)

## References

- [CNA](https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-72vj-pvm4-mm7x)
- [CNA](https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-captcha-bypass-via-store-parameter)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.36%
- **EPSS Percentile:** 29.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._