An issue was discovered in October through build 471.
Priority MEDIUM 47CWE-613Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-613.
Summary
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.
Why it matters now
EPSS 0.02939 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed october/rain (Packagist): 1.0.472, 1.1.2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | october/rain (Packagist) | before 1.0.472 | 1.0.472 | Patch available | GHSA-7ggw-h8pp-r95r |
| — | october/rain (Packagist) | 1.1.0 to before 1.1.2 | 1.1.2 | Patch available | GHSA-7ggw-h8pp-r95r |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- october/rain (Packagist) Vendor— Affected before 1.0.472 Fixed in 1.0.472 Patch available GHSA-7ggw-h8pp-r95r
- october/rain (Packagist) Vendor— Affected 1.1.0 to before 1.1.2 Fixed in 1.1.2 Patch available GHSA-7ggw-h8pp-r95r
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* | up to 1.0.471 | Vulnerable | October CMS |
- cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* Versions up to 1.0.471 Vulnerable ·October CMS
Remediation
- Fix · GHSA-7ggw-h8pp-r95r october/rain (Packagist) Fixed in 1.0.472 Advisory →
- Fix · GHSA-7ggw-h8pp-r95r october/rain (Packagist) Fixed in 1.1.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3311
- 2026-10-03 Alias added: GHSA-7ggw-h8pp-r95r
References
Advisory 2
More October CMS October vulnerabilities
- TI-2021-12316 Account Takeover in Octobercms KEVCVSS 3.1CRITICAL 9.1
- TI-2021-12318 Arbitrary code execution in october/system CVSS 3.1HIGH 8.8
- TI-2017-14456 October CMS build 412 is vulnerable to PHP code execution in the file upload… CVSS 3.0HIGH 7.2
- TI-2023-23545 A Cross-Site Scripting (XSS) vulnerability in installation of October v.3.4.16 allows an… CVSS 3.1MEDIUM 5.4
- TI-2023-19223 An arbitrary file upload vulnerability in October CMS v3.4.4 allows attackers to execute… CVSS 3.1MEDIUM 5.4
- TI-2024-30847 October 3.6.30 allows an authenticated admin account to upload a PDF file containing… CVSS 3.1MEDIUM 4.7
Sources
- CVE-2021-3311 · CVE Program
- CVE-2021-3311 · NVD
- FIRST EPSS
- GHSA-7ggw-h8pp-r95r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences