CVE-2021-26035

MEDIUM 6.1CVE-2021-26035 · Published 07/07/2021 · updated 17/06/2026

In short

CVE-2021-26035 is a MEDIUM (CVSS 6.1) vulnerability affecting joomla! (joomla).
Chance of exploitation in the next 30 days (EPSS): 0.72%, higher than 54.0% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
joomla! joomla	`≥ 3.0.0, ≤ 3.9.27`	No fix yet

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.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Package

Affected versions

Patched versions

≥ 3.0.0, ≤ 3.9.27

No fix yet

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