CVE-2020-15906 in the critical feed json
tiki-login.php in Tiki before 21.2 sets the admin password to a blank value after 50 invalid login attempts.
published 2020-10-22 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-7878
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 27.2%
- EPSS 27.2% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
tiki-login.php in Tiki before 21.2 sets the admin password to a blank value after 50 invalid login attempts.
Patch / fix
Exploit prediction
27.16% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Tiki Wiki CMS GroupWare - Authentication Bypass nuclei detection template
- packetstormsecurity.com http://packetstormsecurity.com/files/159663/Tiki-Wiki-CMS-Groupware-21.1-Authentication-Bypass.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-307 Improper Restriction of Excessive Authentication Attempts
References
-
info.tiki.org
/article473-Security-Releases-of-all-Tiki-versions-since-16-3
patch, vendor-advisory
-
packetstormsecurity.com
/files/159663/Tiki-Wiki-CMS-Groupware-21.1-Authentication-Bypass.html
exploit, third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-15906
- NVD CVE-2020-15906
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.