CVE-2021-23131
[20210305] - Core - Input validation within the template manager
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the template manager.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the template manager.
- Record
CVE-2021-23131- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
[20210305] - Core - Input validation within the template manager
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the template manager.
- Record
CVE-2021-23131- Updated
- 2026-11-02
EUVDEUVD-2021-10249 No score
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the template manager.
- Record
EUVD-2021-10249- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-c523-23wv-j77q No score
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the...
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the template manager.
- Record
GHSA-c523-23wv-j77q- Weakness
- CWE-20
- Updated
- 2026-11-02
OSV
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the template manager.
- Record
CVE-2021-23131- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVBIT-joomla-2021-23131 No score
[20210305] - Core - Input validation within the template manager
An issue was discovered in Joomla! 3.2.0 through 3.9.24. Missing input validation within the template manager.
- Record
BIT-joomla-2021-23131- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
joomlaBitnami |
3.2.0 up to 3.9.25 | 3.9.25 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-23131 is a high vulnerability (CVSS 7.5) in Joomla Joomla\!, published March 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.36%, the 71st percentile. Fixed in joomla 3.9.25.