Improper access control in Sakura Editor - #VU145348
Published: August 25, 2026
Vulnerability identifier: #VU145348
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute attacker-controlled code with repository write privileges and access repository secrets.
The vulnerability exists due to improper access control in the GitHub Actions pull_request_target workflow when processing a fork-based pull request on the opened event. A remote attacker can open a crafted pull request containing modified build scripts to execute attacker-controlled code with repository write privileges and access repository secrets.
No maintainer approval is required, and the workflow can run for a first-time contributor immediately upon pull request creation.
Affected software
Sakura Editor
Remediation
Install security update from vendor's website.
Sakura Editor - update to 2.4.3