Medium
Joomla! XSS in Default Templates
In Joomla! 3.x before 3.9.12, inadequate escaping allowed XSS attacks using the logo parameter of the default templates.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | joomla/joomla-cms | >= 3.0.0, < 3.9.12 | 3.9.12 |
| Joomla (core) | joomla/joomla-cms | >= 3.0.0, < 3.9.12 | 3.9.12 |
References
CVSS score
6.1/10
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Composer, Joomla
- Package
joomla/joomla-cms- Disclosed
- 24.05.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-v84j-vh7x-g7j6 - CC BY 4.0
Vulnerability history: joomla/joomla-cms
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 8
- First → latest
- 05.2022 04.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 1
- Medium 4
- Low 2
Disclosures per year
- 2022: 7
- 2023: 0
- 2024: 0
- 2025: 1
- 2026: 0
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Joomla! XSS in Default Templates this entry
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