Stored cross-site scripting in syncthing - CVE-2022-46165
Published: August 21, 2023
Vulnerability identifier: #VU79775
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
CVE-ID: CVE-2022-46165
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: syncthing.net
Affected software:
syncthing
syncthing
Detailed vulnerability description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when handling filenames in webUI. A remote attacker can trick the victim to synchronize a malicious folder and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
How to mitigate CVE-2022-46165
Install updates from vendor's website.
Sources
- https://github.com/syncthing/syncthing/security/advisories/GHSA-9rp6-23gf-4c3h
- https://github.com/syncthing/syncthing/commit/73c52eafb6566435dffd979c3c49562b6d5a4238
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XEBWSQVGHSTR4ZO7LVVEMPEGMV2DS5XR/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IRYGBFJPVBW6PPTETNIBWQJE4HJSA5PJ/