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CVE-2017-16244

HighPublished

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...

Published: Nov 1, 2017
Updated: Aug 5, 2024
Assigning CNA: mitre
Evidence observed: Nov 1, 2017

Primary CVSS

8.8/ 10High

nvd · CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS probability estimate

1.9%

Low · next 30 days

Percentile: 78.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

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.

Sources

OctoberCMS 1.0.426 (Build 426) - Cross-Site Request ForgeryExploit
Zain Sabahat · php · Nov 1, 2017

Responsible use

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