Vulnerability Description
LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, LinkAce contains a stored cross-site scripting vulnerability that allows a low-privilege user to execute arbitrary JavaScript in an administrator's browser session. This affects instances configured with SSO/OAuth authentication, which is one of the supported authentication methods in LinkAce. An attacker who sets their OAuth display name to a malicious script and then creates an API token will plant a persistent XSS payload in the audit log. When any admin navigates to /system/audit, the payload executes in the admin's browser context. This enables session cookie theft, CSRF token exfiltration (exposed in the la-app-data meta tag), or any other action the admin can perform. This vulnerability is fixed in 2.5.6.
Related Weaknesses (CWE)
References
- https://github.com/Kovah/LinkAce/security/advisories/GHSA-jx4g-ph82-x9mm
- https://github.com/Kovah/LinkAce/security/advisories/GHSA-jx4g-ph82-x9mm
FAQ
What is CVE-2026-45343?
CVE-2026-45343 is a documented vulnerability. LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, LinkAce contains a stored cross-site scripting vulnerability that allows a low-privilege user to execute arbitrary JavaScript...
How severe is CVE-2026-45343?
CVSS scoring is not yet available for CVE-2026-45343. Check NVD for updates.
Is there a patch for CVE-2026-45343?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.