Frappe is a full-stack web application framework. Prior to 15.116.0 and 16.29.0, the OAuth login flow uses an unsanitized client-controlled state parameter to select post-authentication navigation, allowing a crafted state value to redirect a user to an attacker-chosen location. This issue is fixed in versions 15.116.0 and 16.29.0.
https://github.com/frappe/frappe/security/advisories/GHSA-78c5-55xg-jm7m
https://github.com/frappe/frappe/releases/tag/v16.29.0
https://github.com/frappe/frappe/releases/tag/v15.116.0
https://github.com/frappe/frappe/pull/40962
https://github.com/frappe/frappe/commit/6ed8acd869199feb3a2598887d471448297edf07
https://github.com/frappe/frappe/commit/1e0a3b941231d74a71ff1a43eee2e9f63c88712d
https://github.com/frappe/frappe/commit/12568e2d54c4abba70bc0261387053fa28f90988
Published: 2026-10-13
Updated: 2026-10-13
Base Score: 5.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
Base Score: 5.1
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: Medium