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CVE-2026-85586

phpMyFAQ before 4.1.8 CAPTCHA Bypass via store parameter

MEDIUM
6.9
CVSS Score
Published: September 4, 2026 at 11:29 AM UTC
Updated: September 10, 2026 at 04:17 PM UTC
2 products affected across 2 vendorsphpMyFAQphpMyFAQ

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

phpMyFAQ· Phpmyfaq
95%
v < 4.1.8
Affected range stops below 4.1.8, so it looks safe — our inference, not a vendor statement
phpMyFAQ· Thorsten
60%
v < 4.1.8
Vendor states this is fixed in 4.1.8 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-72vj-pvm4-mm7x
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.8-captcha-bypass-via-store-parameter

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-799

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