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VULNERABILITIES

CVE-2021-3311 Details

Description

An issue was discovered in October through build 471. It reactivates an old session ID (which had been invalid after a logout) once a new login occurs. NOTE: this violates the intended Auth/Manager.php authentication behavior but, admittedly, is only relevant if an old session ID is known to an attacker.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://anisiosantos.me/october-cms-token-reactivation CVEExploitThird Party Advisory
https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024 CVEPatchThird Party Advisory
https://octobercms.com/forum/chan/announcements CVEVendor Advisory
https://anisiosantos.me/october-cms-token-reactivation [email protected]ExploitThird Party Advisory
https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024 [email protected]PatchThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-613Insufficient Session Expiration[email protected]

Affected Products

ProductVersions
octobercms october
<= 1.0.471

CPE

  • cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-3311
NVD Published Date:
Feb 5, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]