Description
A type confusion vulnerability in lib/NSSAuthenticator.php in ZendTo before v5.04-7 allows remote attackers to bypass authentication for users with passwords stored as MD5 hashes that can be interpreted as numbers. A solution requires moving from MD5 to bcrypt.
Scores
CVSS v3
4.8
EPSS
0.0019
EPSS Percentile
41.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-843
Status
published
Products (1)
Zend/ZendTo
< 5.04-7
Published
Apr 05, 2025
Tracked Since
Feb 18, 2026