Vulnerability · Published Jul 20, 2026 · Assigned by CERT-PL

CVE-2026-57310Weak password hashing in Windu CMS

Medium 6.3

In plain English

A medium-severity security flaw in Windu CMS from JCD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 4.0)6.3Medium

Exploit odds (30 days)0.3%top 79.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Windu CMS uses hashing algorithm based on MD5 and SHA1 with static salt to store user passwords. This allows an attacker who obtain password hash to decode user credentials. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 4.1 but may also affect other versions.

Affected products (as reported)

Vendor	Product	Versions
JCD	Windu CMS	4.1

Weakness: CWE-916 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://cert.pl/posts/2026/07/CVE-2026-57309 third-party-advisory
https://windu.org product