CVE-2021-26035

MEDIUM

Joomla! 3.0.0-3.9.27 - Cross-Site Scripting in JForm Rules Field

Title source: llm

An issue was discovered in Joomla! 3.0.0 through 3.9.27. Inadequate escaping in the rules field of the JForm API leads to a XSS vulnerability.

Core 1

Core References

Vendor Advisory x_refsource_misc vendor-advisory

CVSS v3 6.1

EPSS 0.0103

EPSS Percentile 77.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79

Status published

Products (1)

joomla/joomla\! 3.0.0 - 3.9.27

Published Jul 07, 2021

Tracked Since Feb 18, 2026