What’s Vulnerable › Vulnerabilities

CVE-2024-56508: File Upload Vulnerability Leading to XSS in LinkAce v1.15.5

• Severity: high (CVSS 7.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-12-27 · updated 2026-06-17
• Weakness: CWE-434

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.

Affected products

• Kovah LinkAce: before 1.15.6 — fixed in 1.15.6

How to fix

Upgrade to a fixed version: Kovah LinkAce 1.15.6. Check the vendor advisory for mitigations.

References

• https://github.com/Kovah/LinkAce/commit/8cf3670d71a8629d33408da76f9d441a1aa933f6
• https://github.com/Kovah/LinkAce/security/advisories/GHSA-2wvv-4576-8862
• https://github.com/Kovah/LinkAce/security/advisories/GHSA-2wvv-4576-8862

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