Cross-Site Request Forgery exists in OctoberCMS 1.0.426 (aka Build 426) due to improper…
Priority MEDIUM 42CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-352.
Summary
Cross-Site Request Forgery exists in OctoberCMS 1.0.426 (aka Build 426) due to improper validation of CSRF tokens for postback handling, allowing an attacker to successfully take over the victim's account. The attack bypasses a protection mechanism involving X-CSRF headers and CSRF tokens via a certain _handler postback variable.
Why it matters now
EPSS 0.01976 80th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed october/october (Packagist): 1.0.427
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/october (Packagist) | before 1.0.427 | 1.0.427 | Patch available | GHSA-vm6r-4p4v-232x |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- october/october (Packagist) Vendor— Affected before 1.0.427 Fixed in 1.0.427 Patch available GHSA-vm6r-4p4v-232x
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:octobercms:october:1.0.426:*:*:*:*:*:*:* | 1.0.426 | Vulnerable | October CMS |
- cpe:2.3:a:octobercms:october:1.0.426:*:*:*:*:*:*:* Versions 1.0.426 Vulnerable ·October CMS
Remediation
- Fix · GHSA-vm6r-4p4v-232x october/october (Packagist) Fixed in 1.0.427 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2017-16244
- 2026-10-03 Alias added: GHSA-vm6r-4p4v-232x
References
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-2017-16244 · CVE Program
- CVE-2017-16244 · NVD
- FIRST EPSS
- GHSA-vm6r-4p4v-232x · 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