CVEvulnerability
CVE-2021-22958
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-10-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-918
Description
A Server-Side Request Forgery vulnerability was found in concrete5 < 8.5.5 that allowed a decimal notation encoded IP address to bypass the limitations in place for localhost allowing interaction with local services. Impact can vary depending on services exposed.CVSSv2.0 AV:A/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
Affected configurations
• concretecms concrete cms (< 8.5.5)
Related
Weakness · CWE (1)
- CWE-918 Server-Side Request Forgery weakness
References
- https://documentation.concretecms.org/developers/introduction/version-history/855-release-notes Release Notes, Vendor Advisory
- https://hackerone.com/reports/863221 Issue Tracking, Permissions Required, Third Party Advisory
- https://documentation.concretecms.org/developers/introduction/version-history/855-release-notes Release Notes, Vendor Advisory
- https://hackerone.com/reports/863221 Issue Tracking, Permissions Required, Third Party Advisory