Dvs Custom NotificationWordPress extension · Dvs Custom Notification Project
CVE-2012-4921
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 · uneditedMultiple cross-site request forgery (CSRF) vulnerabilities in the DVS Custom Notification plugin 1.0.1 and earlier for WordPress allow remote attackers to hijack the authentication of administrators for requests that (1) change application settings or (2) conduct cross-site scripting (XSS) attacks.
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 confidenceMultiple CSRF vulnerabilities in the DVS Custom Notification WordPress plugin (v1.0.1 and earlier) allow remote attackers to trick authenticated administrators into unknowingly submitting requests that modify plugin settings or inject malicious scripts (XSS). The lack of anti-CSRF tokens (nonces) on admin forms enables attackers to craft malicious links or pages that, when visited by a logged-in administrator, execute unintended actions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Dvs Custom NotificationWordPress extension
= 1.0.1CVSS 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:M/Au:N/C:P/I:P/A:P
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 if DVS Custom Notification plugin is installedCheck the WordPress plugins directory for the 'dvs-custom-notification' folder, typically found in /wp-content/plugins/ or via the WordPress admin Plugins pageAffected if The plugin folder 'dvs-custom-notification' exists in the plugins directory
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Determine the installed plugin versionOpen the main plugin file (usually dvs-custom-notification.php) and look for the plugin header comment containing 'Version: x.x.x' or check the WordPress admin Plugins page for the plugin versionAffected if The version is 1.0.1 or earlier
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Inspect admin forms for nonce fieldsAccess the plugin settings page in the WordPress admin panel (usually under Settings > Custom Notification or similar), view the page source, and check if forms contain hidden fields with names like 'wpnonce', '_wpnonce', or 'nonce'Affected if Admin forms do not contain any WordPress nonce fields (wpnonce, _wpnonce, nonce)
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Verify admin authentication is requiredConfirm that the affected plugin settings pages are only accessible to users with administrator privilegesAffected if The plugin settings are accessible to authenticated administrators without additional CSRF protection
A user is affected if the DVS Custom Notification plugin version 1.0.1 or earlier is installed and the admin forms lack WordPress nonce tokens, allowing CSRF attacks on logged-in administrators.
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 plugin to a patched version if available; otherwise, disable the plugin. For remediation, implement WordPress nonces and nonce verification on all admin-facing forms and action handlers to prevent CSRF attacks.
Fix this in Dvs Custom Notification
Scoped from the published advisory
- 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-2012-4921 — 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-2012-4921 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