CVE-2021-41465

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-10-01 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in concrete/elements/collection_theme.php in concrete5-legacy 5.6.4.0 and below allows remote attackers to inject arbitrary web script or HTML via the rel parameter.

Affected products

Concrete5-Legacy Project Concrete5-Legacy: through 5.6.4.0

References

https://github.com/concrete5/concrete5-legacy
https://github.com/concrete5/concrete5-legacy/issues/2006
https://github.com/concrete5/concrete5-legacy
https://github.com/concrete5/concrete5-legacy/issues/2006

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