WordPress security changelog
MEDIUM CVE-2026-33559 Deferred

OpenStreetMap: Cross-site scripting

OpenStreetMap is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is prior to 6.1.15.

CVE / CNA score 5.1 CVSS 4.0 · vultures@jpcert.or.jp
NVD score Pending NVD has not published its own CVSS assessment.
Component
OpenStreetMap
Plugin slug
osm
Affected
prior to 6.1.15
Safe version
See mitigation notes
Published
Mar 27, 2026
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Mar 27, 2026 and is one of 8 known issues for this plugin.

Update, patch or deactivate.

Update OpenStreetMap to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

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 script with a crafted HTTP request. When a victim user accesses this page, the script may be executed in the user's web browser.

CVE / CNA vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary and upstream sources