CVE-2026-25324
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 · uneditedAuthorization Bypass Through User-Controlled Key vulnerability in ExpressTech Systems Quiz And Survey Master quiz-master-next allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Quiz And Survey Master: from n/a through <= 10.3.4.
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 an authorization bypass vulnerability in the Quiz And Survey Master WordPress plugin where user-controlled keys allow attackers to bypass access control checks. The plugin incorrectly uses user-supplied input as authorization tokens without proper validation, enabling unauthorized access to quiz/survey functionality that should be restricted.
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
- None
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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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Confirm Quiz And Survey Master plugin is installedLog into WordPress admin dashboard, navigate to Plugins > Installed Plugins, and look for 'Quiz And Survey Master' or 'QSM' in the list of active pluginsAffected if Plugin is present and active in the WordPress installation
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Identify the installed plugin versionIn the plugins list, click on the plugin name to view details, or check the plugin files in wp-content/plugins/quiz-master-next/ for a version file or header commentAffected if Version cannot be determined or is unknown (unable to compare against patched versions)
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Verify quiz-taking functionality is enabledNavigate to the plugin settings in WordPress admin (Quiz/Survey Master > Settings) and check if quiz-taking endpoints are publicly accessible or if there are quiz pages published on the siteAffected if Quizzes are accessible to unauthenticated users and the plugin handles authorization for quiz access
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Inspect plugin authorization behavior for quiz accessUse browser dev tools or curl to access a quiz URL while logged out, then with a low-privilege user account, and compare whether the plugin properly validates authorization tokens or relies on client-supplied valuesAffected if The plugin accepts user-supplied keys/parameters for authorization without server-side validation (requires code review or traffic analysis)
A site is affected if Quiz And Survey Master plugin is active and the vulnerable authorization mechanism (using user-controlled keys without validation) is in use for quiz/survey access control.
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 dataUpgrade to a patched version of Quiz And Survey Master that implements proper server-side authorization validation. Until then, restrict access to affected plugin endpoints via web server configuration or disable quiz-taking functionality if possible.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-25324 — 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-2026-25324 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