CVE-2025-52793
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 · uneditedCross-Site Request Forgery (CSRF) vulnerability in Esselink.nu Esselink.nu Settings esselinknu-settings allows Reflected XSS.This issue affects Esselink.nu Settings: from n/a through <= 4.5.
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 · moderate confidenceA CSRF vulnerability in Esselink.nu Settings plugin versions <= 4.5 allows attackers to craft malicious requests that lead to reflected XSS. By tricking authenticated administrators into clicking crafted links, attackers can execute arbitrary JavaScript in the admin's browser session due to missing CSRF token validation in the settings form.
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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
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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Identify Esselink.nu Settings plugin installationCheck your CMS plugin directory or admin interface to list installed plugins. Look for the Esselink.nu Settings plugin in the plugin list.Affected if The Esselink.nu Settings plugin is present in the installation
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Determine installed plugin versionAccess the plugin details page in the admin panel or open the main plugin PHP file and locate the version number in the plugin header comment. Compare your version to the affected range (4.5 and below).Affected if The installed version is 4.5 or lower
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Inspect settings form for CSRF token validationLocate the plugin PHP file handling the settings form submission. Search for nonce verification functions such as wp_verify_nonce, check_admin_referer, or wp_nonce_field before processing form data.Affected if No CSRF token or nonce validation is found in the settings form submission handler
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Confirm admin access to settingsVerify that administrator-level users have access to the plugin settings page, as exploitation requires an authenticated admin to submit the malicious request.Affected if Administrator users can access and submit the plugin settings form
You are affected if the Esselink.nu Settings plugin version 4.5 or below is installed and the settings form lacks CSRF token validation, allowing attackers to trick admins into executing reflected XSS via malicious links.
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 dataImplement anti-CSRF tokens (nonce validation) on all form submissions and ensure proper output encoding to prevent reflected XSS. Update to a patched version if available.
- Consultation2.0 h
- Implementation4.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-52793 — 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-2025-52793 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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- 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
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