What is CVE-2026-5451?

CVE-2026-5451 is a medium-severity vulnerability in Hupe13 Extensions For Leaflet Map, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-08.

How severe is CVE-2026-5451?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Hupe13 Extensions For Leaflet Map

CVE-2026-5451

The Extensions for Leaflet Map plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'elevation-track' shortcode in all versions up to, and including, 4.14. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Hupe13 Extensions For Leaflet Map — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-5451?: CVE-2026-5451 is a medium-severity vulnerability in Hupe13 Extensions For Leaflet Map, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-08.
How severe is CVE-2026-5451?: Medium severity. CVSS v3 base score is 6.4 out of 10.