What is CVE-2025-15378?

CVE-2025-15378 is a high-severity vulnerability in Ajseidl Ajs Footnotes, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-01-14.

How severe is CVE-2025-15378?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Ajseidl Ajs Footnotes

CVE-2025-15378

The AJS Footnotes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'note_list_class' and 'popup_display_effect_in' parameters in all versions up to, and including, 1.0 due to missing authorization and nonce verification on settings save, as well as insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to update plugin settings and inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (19.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Ajseidl Ajs Footnotes — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-15378?: CVE-2025-15378 is a high-severity vulnerability in Ajseidl Ajs Footnotes, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-01-14.
How severe is CVE-2025-15378?: High severity. CVSS v3 base score is 7.2 out of 10.