What is CVE-2026-33559?

CVE-2026-33559 is a medium-severity vulnerability in Mika Openstreetmap, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-27.

How severe is CVE-2026-33559?

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

XSS in Mika Openstreetmap

CVE-2026-33559

WordPress Plugin "OpenStreetMap" provided by MiKa contains a cross-site scripting vulnerability. On the site with the affected version of the plugin enabled, a logged-in user with a page-creating/editing privilege can embed some malicious…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (8.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Mika Openstreetmap — versions prior to 6.1.15

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

vultures@jpcert.or.jp
vultures@jpcert.or.jp

Frequently asked questions

What is CVE-2026-33559?: CVE-2026-33559 is a medium-severity vulnerability in Mika Openstreetmap, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-27.
How severe is CVE-2026-33559?: Medium severity. CVSS v3 base score is 5.4 out of 10.