CVE-2024-51478: Use of a Broken or Risky Cryptographic Algorithm in YesWiki

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-10-31 · updated 2026-06-17
Weakness: CWE-327

Description

YesWiki is a wiki system written in PHP. Prior to 4.4.5, the use of a weak cryptographic algorithm and a hard-coded salt to hash the password reset key allows it to be recovered and used to reset the password of any account. This issue is fixed in 4.4.5.

Affected products

yeswiki: before 4.4.5 — fixed in 4.4.5

How to fix

Upgrade to a fixed version: yeswiki 4.4.5. Check the vendor advisory for mitigations.

References

https://github.com/YesWiki/yeswiki/commit/b5a8f93b87720d5d5f033a4b3a131ce0fb621dbc
https://github.com/YesWiki/yeswiki/commit/e1285709f6f6a2277bd0075acf369f33cefd78f7
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-4fvx-h823-38v3

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