CVE-2025-24537
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 StellarWP The Events Calendar the-events-calendar allows Cross Site Request Forgery.This issue affects The Events Calendar: from n/a through <= 6.7.0.
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 The Events Calendar WordPress plugin allows attackers to induce authenticated users to perform unintended actions by tricking their browsers into sending malicious requests. The attack exploits the trust the application places in authenticated user sessions without proper token validation on state-changing operations.
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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Confirm The Events Calendar plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'The Events Calendar' in the list. Note whether it is active or inactive.Affected if The plugin is installed and active, as CSRF attacks target authenticated user sessions.
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Identify the installed plugin versionOn the Plugins page, click on the plugin name or 'View Details' to display the version number. Compare this version against any official security advisories for CVE-2025-24537.Affected if The installed version falls within the vulnerable range for this CVE.
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Check for nonce token validation in AJAX handlersAccess the plugin files via WP File Manager or FTP/SFTP. Navigate to /wp-content/plugins/the-events-calendar/ and inspect AJAX action handlers (typically in files containing 'ajax' in the name or within class files). Look for the presence of 'wp_verify_nonce' or 'check_ajax_referer' function calls before processing requests.Affected if AJAX endpoints lack nonce validation, meaning state-changing operations can be forged.
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Inspect form submissions for CSRF protectionExamine the plugin's form files (such as event creation, event editing, or settings forms). Look for the presence of a nonce field, typically added via 'wp_nonce_field' or 'wp_nonce_url', in the form HTML.Affected if Forms handling state-changing operations do not include nonce fields.
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Verify SameSite cookie attributesUse browser developer tools (Application > Cookies) or inspect cookie headers in HTTP responses to check if session cookies set by WordPress have the SameSite attribute configured.Affected if SameSite attribute is missing or set to 'None' without Secure flag, increasing CSRF exploitability.
A user is affected if The Events Calendar plugin is installed with a vulnerable version AND the plugin lacks nonce validation on its state-changing AJAX endpoints and forms.
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) on all state-changing operations (forms, AJAX endpoints) and validate these tokens on the server side before processing requests. Additionally, configure SameSite attributes on session cookies.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-24537 — 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-2025-24537 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
- No spam, self-promotion, credentials, or personal data