Quiz And Survey MasterWordPress extension · Expresstech
CVE-2021-36898
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 · uneditedAuth. SQL Injection (SQLi) vulnerability in Quiz And Survey Master plugin <= 7.3.4 on WordPress.
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 confidenceAuthenticated SQL Injection vulnerability in Quiz And Survey Master WordPress plugin versions 7.3.4 and below allows attackers with at least low-privilege user accounts (likely subscriber-level) to inject malicious SQL queries through vulnerable parameters in the plugin's functionality.
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
Quiz And Survey MasterWordPress extension
<= 7.3.4CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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 Quiz And Survey Master plugin is installedNavigate to WordPress admin dashboard > Plugins > Installed Plugins. Look for 'Quiz And Survey Master' or 'Expresstech Quiz And Survey Master' in the list.Affected if Plugin is not found in the installed plugins list, then the vulnerability does not apply.
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Check installed plugin versionIn the plugins list, locate the Quiz And Survey Master entry and note the version number displayed beneath the plugin name. Alternatively, check the plugin's main PHP file header for the Version field.Affected if Version number is 7.3.4 or lower.
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Confirm plugin is activeIn the WordPress plugins list, verify that Quiz And Survey Master shows as 'Active' under the plugin status column.Affected if Plugin is installed with vulnerable version but is deactivated, then the attack surface is reduced.
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Identify low-privilege user accountsNavigate to Users > All Users in WordPress admin. Review the roles assigned to each user account (Subscriber, Contributor, Author, Editor, Administrator).Affected if At least one user account with Subscriber-level or Contributor-level access exists in the system.
User is affected if Quiz And Survey Master plugin version 7.3.4 or lower is installed and active, and low-privilege user accounts (Subscriber or Contributor) exist in the WordPress installation.
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 Quiz And Survey Master plugin to a version newer than 7.3.4; alternatively, disable the plugin until a patch is available.
Fix this in Quiz And Survey Master
Scoped from the published advisory
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 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 $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-36898 — 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-2021-36898 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