In Joomla! before 3.9.19, lack of input validation in the heading tag option of the…
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
In Joomla! before 3.9.19, lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules allows XSS.
Why it matters now
EPSS 0.01011 63rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:* | 3.0.1 to before 3.9.19 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.0.0:-:*:*:*:*:*:* | 3.0.0 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.0.0:alpha1:*:*:*:*:*:* | 3.0.0 alpha1 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.0.0:alpha2:*:*:*:*:*:* | 3.0.0 alpha2 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.0.0:beta1:*:*:*:*:*:* | 3.0.0 beta1 | Vulnerable | Joomla! |
- cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:* Versions 3.0.1 to before 3.9.19 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.0.0:-:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.0.0:alpha1:*:*:*:*:*:* Versions 3.0.0 alpha1 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.0.0:alpha2:*:*:*:*:*:* Versions 3.0.0 alpha2 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.0.0:beta1:*:*:*:*:*:* Versions 3.0.0 beta1 Vulnerable ·Joomla!
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-13761
- 2026-10-03 Alias added: GHSA-9fjf-f65j-g25f
References
More Joomla! vulnerabilities
- TI-2016-08118 The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow… KEVCVSS 3.1CRITICAL 9.8
- TI-2017-06410 SQL injection vulnerability in Joomla! 3.7.x before 3.7.1 allows attackers to execute… CVSS 3.0CRITICAL 9.8
- TI-2016-08129 The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass… CVSS 3.1CRITICAL 9.8
- TI-2016-07280 The register method in the UsersModelRegistration class in controllers/user.php in the… CVSS 3.0CRITICAL 9.8
- TI-2023-09555 [20230201] - Core - Improper access check in webservice endpoints KEVCVSS 3.1MEDIUM 5.3
- TI-2015-07045 Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object… CVSS 2.0HIGH 7.5
Sources
- CVE-2020-13761 · CVE Program
- CVE-2020-13761 · NVD
- FIRST EPSS
- GHSA-9fjf-f65j-g25f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences