CVE-2017-16244: Cross-Site Request Forgery (CSRF)

May 13, 2022 (updated July 25, 2023)

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.

References

github.com/advisories/GHSA-vm6r-4p4v-232x
github.com/octobercms/october/commit/4a6e0e1e0e2c3facebc17e0db38c5b4d4cb05bd0
nvd.nist.gov/vuln/detail/CVE-2017-16244
www.exploit-db.com/exploits/43106/

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