CVE-2021-22949

MediumCVSS 5.4/10Last modified Jun 17, 2026

Description

A CSRF in Concrete CMS version 8.5.5 and below allows an attacker to duplicate files which can lead to UI inconvenience, and exhaustion of disk space.Credit for discovery: "Solar Security CMS Research Team"

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

Weakness enumeration

CWE-352

Affected software

Vendor	Product	Versions
n/a	https://github.com/concrete5/concrete5	Fixed in version 8.5.6

References

https://documentation.concretecms.org/developers/introduction/version-history/856-release-notesRelease Notes
https://hackerone.com/reports/1102225Permissions Required
https://documentation.concretecms.org/developers/introduction/version-history/856-release-notesRelease Notes
https://hackerone.com/reports/1102225Permissions Required

Timeline

Published: Sep 23, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

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