What is CVE-2025-53838?

CVE-2025-53838 is a medium-severity vulnerability in Kovah Linkace, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-09-08.

How severe is CVE-2025-53838?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2025-53838 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Kovah Linkace

CVE-2025-53838

LinkAce is a self-hosted archive to collect website links. A stored cross-site scripting (XSS) vulnerability was discovered in versions prior to 2.1.9 that allows an attacker to inject arbitrary JavaScript, which is then executed in the co…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (16.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Kovah Linkace — versions < 2.1.9
Linkace

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

Medok228/Medok228

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-53838?: CVE-2025-53838 is a medium-severity vulnerability in Kovah Linkace, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-09-08.
How severe is CVE-2025-53838?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-53838 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.