CVE-2026-39710
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 stmcan RT-Theme 18 | Extensions rt18-extensions allows Cross Site Request Forgery.This issue affects RT-Theme 18 | Extensions: from n/a through <= 2.5.
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 confidenceCross-Site Request Forgery (CSRF) vulnerability in RT-Theme 18 Extensions (version <= 2.5) allows attackers to trick authenticated users into performing unintended actions on the application by forcing their browser to send malicious requests.
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
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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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Verify RT-Theme 18 Extensions plugin is installedCheck your WordPress plugins directory or admin panel for the RT-Theme 18 Extensions plugin. Look for the plugin folder typically named 'rttheme18-extensions' or similar under wp-content/plugins/Affected if The plugin is present and active in the WordPress installation
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Inspect forms for anti-CSRF tokensExamine the plugin's PHP files for form submissions and state-changing actions. Search for missing nonce verification functions such as wp_nonce_field, check_admin_referer, wp_verify_nonce, or verify_nonce across the plugin's source filesAffected if State-changing operations lack nonce token verification (no call to wp_verify_nonce, check_admin_referer, or similar validation functions)
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Check for Origin/Referer header validationReview the plugin's PHP handler files for state-changing operations. Look for server-side checks that validate $_SERVER['HTTP_ORIGIN'] or $_SERVER['HTTP_REFERER'] headers before processing requestsAffected if No server-side validation of Origin or Referer headers exists on forms or AJAX actions within the plugin
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Identify unprotected AJAX endpointsScan the plugin for AJAX action handlers (add_action('wp_ajax_...')) and verify whether each handler includes nonce validation before processing the requestAffected if AJAX endpoints intended for logged-in users do not verify a nonce token before executing state-changing operations
If the RT-Theme 18 Extensions plugin is active and any state-changing operations (forms, AJAX handlers, or admin actions) lack both nonce token verification and Origin/Referer header validation, the environment is vulnerable to CVE-2026-39710
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 (synchronizer token pattern) for state-changing operations and configure SameSite cookie attributes to prevent cross-origin request forgery.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-39710 — 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-2026-39710 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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