All vulnerabilities
CVE-2026-111887GHSA-pgxw-7c68-83w7

phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta Account Enumeration via Guest Comment Endpoint

thorsten phpMyFAQ
Open in ThreatlineRecord JSON
CVSS
6.9Medium
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 18 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.26%Chance of exploitation activity in the next 30 days, higher than 16% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.1.9Also 4.2.0-betaCVE List
Published17 Oct 2026Updated 18 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains an account enumeration vulnerability that allows unauthenticated attackers to confirm registered display names and emails via a distinct HTTP 409 response. Attackers can submit guest comments to the comment create endpoint with candidate user and mail values to link names to emails for targeted phishing.

Text from CVE List

Affected versions 4

  • phpMyFAQaffected: all versions before 4.1.9CVE List
  • phpMyFAQunaffected: 4.1.9CVE List
  • phpMyFAQaffected: 4.2.0-alpha before 4.2.0-betaCVE List
  • phpMyFAQunaffected: 4.2.0-betaCVE List

References 2