CVE-2026-111900: Auth Bypass (CVSS 4.3)

Description

phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains an improper authorization vulnerability in attachment.php that fails to verify whether an attachment's parent FAQ is published or visible to the requester. Authenticated users with the dlattachment permission can request index.php?action=attachment&id=<ID> to download complete attachment files belonging to draft FAQs.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-863 Incorrect Authorization

References

Other References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-h76j-35m7-3mwq https://www.vulncheck.com/advisories/phpmyfaq-before-4.1.9-and-4.2.0-alpha-before-4.2.0-beta-draft-faq-attachment-disclosure-via-attachment-php

Frequently Asked Questions

What is CVE-2026-111900? +

phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains an improper authorization vulnerability in attachment.php that fails to verify whether an attachment's parent FAQ is published or visible to the requester. Authenticated users with the dlattachment permission can request index.php?action=attachment&id=<ID> to download complete attachment files belonging to draft FAQs. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-111900? +

CVE-2026-111900 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-111900? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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