Reversible One-Way Hash in phpMyFAQ - CVE-2026-48488
Published: July 14, 2026
Vulnerability identifier: #VU137458
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-48488
CWE-ID: CWE-328
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Thorsten Rinne
Affected software:
phpMyFAQ
phpMyFAQ
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass attachment protection.
The vulnerability exists due to use of a weak hash in phpMyFAQ Attachment password hashing in AbstractAttachment.php when verifying attachment passwords. A remote attacker can generate a SHA-1 collision to bypass attachment protection.
If the password hash database is compromised, the weak hashing algorithm also increases the risk of password cracking.
How to mitigate CVE-2026-48488
Install security update from vendor's website.