EUVD-2026-48506
GHSA-qf2j-rjv4-p2wp
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Admin must actively open the pending-review preview for execution, warranting UI:R; all other metrics match the network-accessible, low-privilege, scope-changing XSS profile.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The Open User Map - Interactive Leaflet Maps plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 1.4.45 due to insufficient input sanitization and output escaping. 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. The attack does not require post publication; a Contributor submitting a post for pending review is sufficient, as the payload executes when an Administrator opens the pending-review preview.
AnalysisAI
Stored Cross-Site Scripting in the Open User Map - Interactive Leaflet Maps WordPress plugin (all versions through 1.4.45) allows authenticated attackers at contributor level to inject persistent malicious scripts via unsanitized shortcode attributes. Critically, the payload does not require the attacker's post to be published - submitting a draft for pending review is sufficient, because the script executes when an Administrator opens the pending-review preview in normal editorial workflow. No public exploit or CISA KEV listing has been identified at time of analysis, and a source-level patch changeset (3618639) is present in the WordPress plugin repository.
Technical ContextAI
The plugin (CPE: cpe:2.3:a:100plugins:open_user_map_-_interactive_leaflet_maps:*:*:*:*:*:*:*:*) renders interactive Leaflet.js maps inside WordPress pages via shortcodes. Shortcode attributes are passed into PHP templates - specifically partial-map-render.php:L450, partial-map-init.php:L682, Frontend.php:L120, and BaseController.php:L1026 - without adequate sanitization or output escaping before being written into the HTML response. CWE-79 (Improper Neutralization of Input During Web Page Generation) is the root cause: attacker-controlled attribute values reach the DOM without encoding, enabling script injection that persists in the page and executes in any browser that renders it.
RemediationAI
Update to a version of Open User Map - Interactive Leaflet Maps above 1.4.45 immediately. A patch changeset (3618639) has been committed to the WordPress plugin repository (https://plugins.trac.wordpress.org/changeset?reponame=&old=3618639%40open-user-map&new=3618639%40open-user-map); however, the exact released patched version number is not independently confirmed from the available data - verify the current version in the WordPress Plugin Directory before deploying. As a compensating control pending upgrade, restrict contributor-level registration on the WordPress site or disable new contributor accounts if they are not operationally required; this removes the attacker's foothold. Administrators should also review pending posts with caution in the interim and avoid opening previews from unknown or untrusted contributors. Disabling the Open User Map shortcode via a content security policy or a shortcode-blocking plugin is an option but would break map functionality.
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External POC / Exploit Code
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