What’s Vulnerable › Vulnerabilities

CVE-2020-15906

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 27.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-10-22 · updated 2026-06-17
• Weakness: CWE-307

Description

tiki-login.php in Tiki before 21.2 sets the admin password to a blank value after 50 invalid login attempts.

Affected products

• Tiki: from 16.3 before 21.2 — fixed in 21.2

How to fix

Upgrade to a fixed version: Tiki 21.2. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/159663/Tiki-Wiki-CMS-Groupware-21.1-Authentication-Bypass.html
• https://info.tiki.org/article473-Security-Releases-of-all-Tiki-versions-since-16-3
• http://packetstormsecurity.com/files/159663/Tiki-Wiki-CMS-Groupware-21.1-Authentication-Bypass.html
• https://info.tiki.org/article473-Security-Releases-of-all-Tiki-versions-since-16-3

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