CVE-2026-0811
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 · uneditedThe Advanced Contact form 7 DB plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.0.9. This is due to missing or incorrect nonce validation on the 'vsz_cf7_save_setting_callback' function. This makes it possible for unauthenticated attackers to delete form entry via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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 confidenceThe Advanced Contact form 7 DB WordPress plugin versions up to 2.0.9 lacks proper nonce validation on the vsz_cf7_save_setting_callback function, allowing unauthenticated attackers to forge requests that can delete form entries by tricking administrators into clicking malicious links.
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 plugin is installedNavigate to WordPress admin > Plugins and locate 'Advanced Contact Form 7 DB' (may also appear as 'CF7 Database' or 'Contact Form 7 DB'). Verify the plugin file exists in /wp-content/plugins/Affected if The plugin is listed in the WordPress plugins directory
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Check the installed versionIn Plugins page, click on the plugin to view details, or inspect the main plugin file header in /wp-content/plugins/[plugin-folder]/ for the 'Version:' field. Compare against the fixed version 2.1.0Affected if Version is present and is below 2.1.0
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Verify the plugin is activeCheck the Plugins list in WordPress admin - the plugin must be activated for the vulnerability to be exploitableAffected if Plugin shows as 'Active' status
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Identify the vulnerable callback functionExamine the main plugin PHP file for the function 'vsz_cf7_save_setting_callback' - this is the function lacking nonce validation. Use grep or a file search in the plugin directoryAffected if The function exists in the plugin code without a corresponding nonce verification call (such as wp_verify_nonce or check_admin_referer)
A user is affected if the Advanced Contact Form 7 DB plugin is installed, active, and running a version prior to 2.1.0, with the vsz_cf7_save_setting_callback function present and unprotected by nonce validation.
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 plugin version once a patch is released; in the interim, enforce administrator session integrity and educate admins about phishing risks.
- Consultation2.0 h
- Implementation2.0 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 $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-0811 — 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-2026-0811 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