CVE-2021-37366
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 · uneditedCTparental before 4.45.03 is vulnerable to cross-site request forgery (CSRF) in the CTparental admin panel. By combining CSRF with XSS, an attacker can trick the administrator into clicking a link that cancels the filtering for all standard users.
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 confidenceCSRF vulnerability in CTparental admin panel (versions before 4.45.03) allows attackers to forge administrative requests by tricking logged-in admins into clicking malicious links. When combined with XSS, attackers can cancel content filtering settings for all standard users, bypassing the admin panel's security controls.
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< 4.45.03CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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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Locate CTparental installationSearch the system for CTparental files, typically found in web server directories such as /var/www/ or directories served by web servers like Apache or Nginx. Look for the main ctparental directory or configuration files.Affected if CTparental is present on the system
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Determine installed CTparental versionOpen the main CTparental file (commonly index.php or a version.php file in the CTparental directory) and locate the version number defined in the code. Compare this version against the affected range of versions before 4.45.03.Affected if The installed version is lower than 4.45.03
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Verify admin panel accessibilityAccess the CTparental admin panel via the web interface (typically at /ctparental or /admin within the web server path). Confirm the admin panel is reachable and functional.Affected if The admin panel is accessible and operational
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Inspect admin forms for anti-CSRF protectionView the HTML source of admin panel forms that perform state-changing actions (such as content filtering settings). Look for anti-CSRF tokens, validation tokens, or referer checks in the form markup.Affected if The admin forms lack anti-CSRF tokens or similar protection mechanisms
A system is affected if CTparental versions below 4.45.03 are installed and the admin panel lacks anti-CSRF protections in its forms.
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.
dbcve · scoped4.45.03
Upgrade to CTparental 4.45.03 or later which addresses the CSRF vulnerability. Additionally, implement anti-CSRF tokens for all state-changing admin panel operations.
4.45.03 or later
- 1. Backup the current Ctparental configuration and data
- 2. Update the package repository to ensure latest packages are available
- 3. Upgrade Ctparental to version 4.45.03 or later using the package manager (e.g., apt-get update && apt-get install ctparental, or equivalent for your distribution)
- 4. If using a git-based installation, pull the latest changes from the repository and checkout tag v4.45.03 or later
- 5. Restart any Ctparental services if applicable
- 6. Verify the installed version matches or exceeds 4.45.03
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-37366 — 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-2021-37366 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