CVE-2024-56508 File Upload Vulnerability Leading to XSS in LinkAce v1.15.5
Attackers can upload malicious HTML files with JavaScript payloads via bookmark import, leading to XSS execution when accessed.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-56508?
CVE-2024-56508 is a high-severity vulnerability in Kovah LinkAce, published on 27 Dec 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
LinkAce is a self-hosted archive to collect links of your favorite websites. Prior to 1.15.6, a file upload vulnerability exists in the LinkAce. This issue occurs in the "Import Bookmarks" functionality, where malicious HTML files can be uploaded containing JavaScript payloads. These payloads execute when the uploaded links are accessed, leading to potential reflected or persistent XSS scenarios. This vulnerability is fixed in 1.15.6.
Weakness: CWE-434
Which versions are affected by CVE-2024-56508?
It affects 1 product.
Products include Linkace Linkace.
How do I fix CVE-2024-56508?
No fix has been published for CVE-2024-56508 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-56508 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-56508 exists.
Other vulnerabilities in Kovah LinkAce
- CVE-2026-27458 LinkAce: Stored XSS in Atom Feed via CDATA Escape in List Description
- CVE-2025-62722 LinkAce: Stored XSS Vulnerability in Link Title Field Through Social Media Sharing Feature
- CVE-2026-33953 LinkAce's SSRF protection can be bypassed via internal hostname resolution in LinkAce
- CVE-2025-53838 LinkAce has a Stored One Click XSS vulnerability
- CVE-2026-30953 LinkAce affected by SSRF via link creation: NoPrivateIpRule not applied to LinkStoreRequest
Sources
Also known as GHSA-2wvv-4576-8862.