What is CVE-2025-23909?

CVE-2025-23909 is a medium-severity vulnerability in Common Ninja Compare, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2025-01-16.

How severe is CVE-2025-23909?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2025-23909 known to be exploited?

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

XSS in Common Ninja Compare

CVE-2025-23909

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Common Ninja Compare Ninja compare-ninja-comparison-tables allows Stored XSS.This issue affects Compare Ninja: from n/a through <= 2.1.0.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (27.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

Affected products

Common Ninja Compare — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

cyb3r-w0lf/nuclei-template-collection

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2025-23909?: CVE-2025-23909 is a medium-severity vulnerability in Common Ninja Compare, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2025-01-16.
How severe is CVE-2025-23909?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-23909 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.