CVE-2021-23126
[20210301] - Core - Insecure randomness within 2FA secret generation
MEDIUM
5.3
CVSS Score
Published: March 4, 2021 at 05:37 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
1 product affected across 1 vendorJoomla!
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Severity
MEDIUM5.3
Exploit prediction
EPSS 1%
Description
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Usage of the insecure rand() function within the process of generating the 2FA secret.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
3.2.0 ≤ v < 3.9.253.2.0-3.9.24
Affected range stops below 3.9.25, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://developer.joomla.org/security-centre/841-20210301-core-insecure-randomness-within-2fa-secret-generation.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-338
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