CVE-2026-57310 PUBLISHED

Weak password hashing in Windu CMS

Assigner: CERT-PL
Reserved: 24.06.2026 Published: 20.07.2026 Updated: 20.07.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 6.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	JCD
Product	Windu CMS
Versions	Default: unknown Version 4.1 is affected

Credits

Jakub Lipiński finder
Marek Tołczyk finder
Kamil Królikowski finder

References

Problem Types

CWE-916 Use of Password Hash With Insufficient Computational Effort CWE