In Joomla! before 3.9.19, missing token checks in com_postinstall lead to CSRF.
Priority LOW 39CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-352.
Summary
In Joomla! before 3.9.19, missing token checks in com_postinstall lead to CSRF.
Why it matters now
EPSS 0.00723 54th 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 · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:* | 3.7.1 to before 3.9.19 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.7.0:-:*:*:*:*:*:* | 3.7.0 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.7.0:alpha1:*:*:*:*:*:* | 3.7.0 alpha1 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.7.0:alpha2:*:*:*:*:*:* | 3.7.0 alpha2 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.7.0:beta1:*:*:*:*:*:* | 3.7.0 beta1 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.7.0:beta2:*:*:*:*:*:* | 3.7.0 beta2 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.7.0:beta3:*:*:*:*:*:* | 3.7.0 beta3 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.7.0:beta4:*:*:*:*:*:* | 3.7.0 beta4 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.7.0:rc1:*:*:*:*:*:* | 3.7.0 rc1 | Vulnerable | Joomla! |
| cpe:2.3:a:joomla:joomla\!:3.7.0:rc2:*:*:*:*:*:* | 3.7.0 rc2 | Vulnerable | Joomla! |
- cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:* Versions 3.7.1 to before 3.9.19 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.7.0:-:*:*:*:*:*:* Versions 3.7.0 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.7.0:alpha1:*:*:*:*:*:* Versions 3.7.0 alpha1 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.7.0:alpha2:*:*:*:*:*:* Versions 3.7.0 alpha2 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.7.0:beta1:*:*:*:*:*:* Versions 3.7.0 beta1 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.7.0:beta2:*:*:*:*:*:* Versions 3.7.0 beta2 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.7.0:beta3:*:*:*:*:*:* Versions 3.7.0 beta3 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.7.0:beta4:*:*:*:*:*:* Versions 3.7.0 beta4 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.7.0:rc1:*:*:*:*:*:* Versions 3.7.0 rc1 Vulnerable ·Joomla!
- cpe:2.3:a:joomla:joomla\!:3.7.0:rc2:*:*:*:*:*:* Versions 3.7.0 rc2 Vulnerable ·Joomla!
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-13760
- 2026-10-03 Alias added: GHSA-vxcx-4g2g-x2vr
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-2020-13760 · CVE Program
- CVE-2020-13760 · NVD
- FIRST EPSS
- GHSA-vxcx-4g2g-x2vr · 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