CVE-2026-33559
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedWordPress 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThis is a stored cross-site scripting (XSS) vulnerability in the OpenStreetMap WordPress plugin. An authenticated user with page creation or editing privileges can inject malicious JavaScript via crafted HTTP requests. When other users view the compromised pages, the injected script executes in their browsers.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm OpenStreetMap plugin installationNavigate to WordPress admin dashboard > Plugins and verify the OpenStreetMap plugin is installed and activatedAffected if The OpenStreetMap plugin is installed and active in WordPress
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Identify installed plugin versionIn Plugins list, click on the OpenStreetMap plugin to view its version number, or inspect the plugin header in wp-content/plugins/openstreetmap/plugin.phpAffected if Running a version prior to the patched release (compare your version to the vendor's current version)
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Verify page creation or editing access existsCheck WordPress user roles and plugin-specific permissions to confirm which user roles can create or edit pages containing OpenStreetMap shortcodes or map contentAffected if Non-administrator user roles (authors, editors, contributors) have page creation or editing capabilities enabled
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Inspect for existing malicious injectionsReview pages using OpenStreetMap shortcodes in the WordPress page editor for unexpected script tags, event handlers, or anomalous HTML attributes in the map configurationAffected if Any suspicious JavaScript code is found embedded in page content or map settings
You are affected if the OpenStreetMap WordPress plugin is active, runs on an unpatched version, and allows authenticated users with editing privileges to modify pages containing OpenStreetMap content.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpdate to the latest patched version of the OpenStreetMap plugin. If no update is available, limit page-editing capabilities to trusted administrators only until a security patch is released.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-33559 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-33559 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data