CVE-2021-23127 json
[20210301] - Core - Insecure randomness within 2FA secret generation
published 2021-03-04 5 y ago modified 2026-09-08 2 mo ago also BIT-joomla-2021-23127 , EUVD-2021-10245
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Usage of an insufficient length for the 2FA secret accoring to RFC 4226 of 10 bytes vs 20 bytes.
Patch / fix
- bitnami joomla 3.9.25
- joomla joomla! 3.9.25
Exploit prediction
1.38% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:N |
| OSV | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | joomla | >=3.2.0, <3.9.25 |
3.9.25 |
Affected products
- Joomla! Project Joomla! CMS
References
Sources
- CVE List CVE-2021-23127
- NVD CVE-2021-23127
- OSV BIT-joomla-2021-23127
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