CVE-2026-111887

MEDIUMCVSS 5.3/10

Last modified

CVE-2026-111887 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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..

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.

Metrics

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-111887?
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.
How severe is CVE-2026-111887?
CVE-2026-111887 has a CVSS score of 5.3/10 (MEDIUM severity).
How do I fix CVE-2026-111887?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST