CVE-2021-41464

6.1 mediumEPSS 0.8%

Medium (6.1) in concrete5-legacy project concrete5-legacy. EPSS 0.8% chance of exploitation in the next 30 days.

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

Severity

CVSS 3.1

6.1 medium

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-10-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

concrete5-legacy_project:concrete5-legacy

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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