XSS in Kovah Linkace
CVE-2025-59424
LinkAce is a self-hosted archive to collect website links. Prior to 2.3.1, a Stored Cross-Site Scripting (XSS) vulnerability has been identified on the /system/audit page. The application fails to properly sanitize the username field before it is rendered in the audit log. An authenticated attacker can set a malicious JavaScript payload as their username. When an action performed by this user is recorded (e.g., generate or revoke an API token), the payload is stored in the database. The script is then executed in the browser of any user, particularly administrators, who views the /system/audit page. This vulnerability is fixed in 2.3.1.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (25.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Kovah Linkace — versions < 2.3.1
- Linkace
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/Kovah/LinkAce/security/advisories/GHSA-289g-9gff-p4wh (Exploit, Vendor Advisory)
- github.com/Kovah/LinkAce/commit/c0d21b974b32f1ca2fab550fb476c573a068e196 (Patch)
Frequently asked questions
- What is CVE-2025-59424?
- CVE-2025-59424 is a high-severity vulnerability in Kovah Linkace, classified under Cross-site Scripting. CVSS score: 7.3/10. Published 2025-09-18.
- How severe is CVE-2025-59424?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2025-59424 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.