CVE-2021-22949 json
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…
published 2021-09-23 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10077
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
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"
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:N/I:P/A:P |
Affected products
- n/a https://github.com/concrete5/concrete5
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
hackerone.com
/reports/1102225
permissions-required
-
documentation.concretecms.org
/developers/introduction/version-history/856-release-notes
release-notes
Sources
- CVE List CVE-2021-22949
- NVD CVE-2021-22949
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