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HIGH · 8.8

CVE-2020-8420

An issue was discovered in Joomla! before 3.9.15. A missing CSRF token check in the LESS compiler of com_templates causes a CSRF vulnerability.

Vulnerability Description

An issue was discovered in Joomla! before 3.9.15. A missing CSRF token check in the LESS compiler of com_templates causes a CSRF vulnerability.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
JoomlaJoomla\!>= 3.0.0, < 3.9.15

Related Weaknesses (CWE)

CWE-352

References

FAQ

What is CVE-2020-8420?

CVE-2020-8420 is a vulnerability with a CVSS score of 8.8 (HIGH). An issue was discovered in Joomla! before 3.9.15. A missing CSRF token check in the LESS compiler of com_templates causes a CSRF vulnerability.

How severe is CVE-2020-8420?

CVE-2020-8420 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-8420?

Check the references section above for vendor advisories and patch information. Affected products include: Joomla Joomla\!.