CVE-2026-25315
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 · uneditedMissing Authorization vulnerability in hcaptcha hCaptcha for WP hcaptcha-for-forms-and-more allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects hCaptcha for WP: from n/a through <= 4.21.1.
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 confidenceThis is a missing authorization vulnerability in the hCaptcha for WordPress plugin (hcaptcha-for-forms-and-more). The vulnerability allows attackers to exploit incorrectly configured access control security levels, likely enabling unauthenticated or unauthorized users to access functionality that should be restricted to authorized users. The issue affects all versions up to and including 4.21.1.
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
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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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Verify hCaptcha plugin is installed and activeIn WordPress admin, go to Plugins > Installed Plugins and confirm 'hCaptcha for Forms and More' (hcaptcha-for-forms-and-more) is present and activated. Alternatively, check for the plugin directory at /wp-content/plugins/hcaptcha-for-forms-and-more/ and verify it contains active plugin files.Affected if The plugin is installed and activated in WordPress, enabling any associated vulnerable endpoints or functionality.
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Identify installed plugin versionIn WordPress admin, go to Plugins > Installed Plugins and locate hCaptcha for Forms and More. The version number is displayed below the plugin name. Alternatively, open the main plugin file (e.g., /wp-content/plugins/hcaptcha-for-forms-and-more/hcaptcha.php) and search for 'Version:' in the file header comment.Affected if The installed version is 4.21.1 or lower, placing it within the affected version range.
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Review AJAX endpoint access controlsInspect the plugin directory for AJAX handlers - typically files containing 'wp_ajax_' or 'wp_ajax_nopriv_' hooks. Check the callback functions for missing capability checks (like current_user_can()) or nonce validation before processing requests. Common locations include /includes/ajax.php or similar handler files within the plugin.Affected if AJAX endpoints exist that handle sensitive operations without proper authorization checks (missing current_user_can() or nonce verification for non-privileged users).
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Audit WordPress admin panel access configurationsExamine the plugin admin menu registration and handler functions in the plugin code. Look for admin pages that may lack proper capability checks (e.g., missing 'manage_options' or 'activate_plugins' verifications) before granting access or performing administrative actions.Affected if Admin functions or pages can be accessed or triggered by users lacking proper WordPress capabilities/roles.
A user is affected if the hCaptcha for WordPress plugin versions 4.21.1 or lower are installed and active, with AJAX endpoints or admin functions lacking proper authorization checks accessible to unauthorized users.
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 the hCaptcha for WP plugin to a version beyond 4.21.1 once a patch is available, and review access control configurations on WordPress admin panels and AJAX endpoints.
- 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-2026-25315 — 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-2026-25315 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