Cross-site scripting in Graylog - #VU135312
Published: May 7, 2025 / Updated: June 25, 2026
Vulnerability identifier: #VU135312
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Graylog
Affected software:
Graylog
Graylog
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary JavaScript in the victim's browser and perform authenticated API requests in the context of the victim's session.
The vulnerability exists due to cross-site scripting in the files plugin and API browser when handling uploaded files requested through the API browser. A remote user can upload a file containing crafted JavaScript code to execute arbitrary JavaScript in the victim's browser and perform authenticated API requests in the context of the victim's session.
User interaction is required when a user requests the uploaded file through the API browser.
Remediation
Install security update from vendor's website.