CVE-2021-24998 json
Simple JWT Login < 3.3.0 - Insecure Password Creation
published 2021-12-27 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11910
- cvss
- 7.5
- 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 69%
- public exploits
- 0
- none known
Summary
The Simple JWT Login WordPress plugin before 3.3.0 can be used to create new WordPress user accounts with a randomly generated password. The password is generated using the str_shuffle PHP function that "does not generate cryptographically secure values, and should not be used for cryptographic purposes" according to PHP's documentation.
Patch / fix
Exploit prediction
1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/1cca404e-766a-43ab-b41f-77d6a3b282fb referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- Unknown Simple JWT Login
Classification
- Weakness
-
- CWE-330 Use of Insufficiently Random Values
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset/2613782
patch, third-party-advisory
-
wpscan.com
/vulnerability/1cca404e-766a-43ab-b41f-77d6a3b282fb
exploit, vdb-entry, technical-description, third-party-advisory
Sources
- CVE List CVE-2021-24998
- NVD CVE-2021-24998
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.