CVE-2020-23361 json
phpList 3.5.3 allows type juggling for login bypass because == is used instead of === for password hashes, which mishandles hashes that beg…
published 2021-01-27 5 y ago modified 2026-06-17 4 mo ago also BIT-phplist-2020-23361 , EUVD-2020-16108
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
phpList 3.5.3 allows type juggling for login bypass because == is used instead of === for password hashes, which mishandles hashes that begin with 0e followed by exclusively numerical characters.
Exploit prediction
1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/phpList/phplist3/issues/668 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 |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | phplist | >=3.5.3, <=3.5.3 |
no fix listed |
References
-
github.com
/phpList/phplist3/issues/668
exploit, issue-tracking, third-party-advisory, web
Sources
- CVE List CVE-2020-23361
- NVD CVE-2020-23361
- OSV BIT-phplist-2020-23361
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.