CVE-2021-41564
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 · uneditedTad Honor viewing book list function is vulnerable to authorization bypass, thus remote attackers can use special parameters to delete articles arbitrarily without logging in.
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 confidenceTad Honor module's book list viewing function contains an authorization bypass vulnerability where unauthenticated remote attackers can manipulate special parameters to arbitrarily delete articles without any authentication credentials.
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< 1.47CVSS 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
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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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Identify if Tad Honor module is installedCheck the modules or plugins list in the XOOPS or CMS platform where Tad Honor is deployed. Look for a module named 'tad_honor' or 'Tad Honor' in the system.Affected if The Tad Honor module is present in the system
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Determine the installed Tad Honor versionAccess the module administration panel or check the module's version file (typically in the module's main directory, often named version.php or similar). Compare the version number to the affected range.Affected if The installed version is lower than 1.47
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Verify the book list viewing function is accessibleAccess the book list viewing page of the Tad Honor module (typically at /modules/tad_honor/ or similar path depending on the CMS installation).Affected if The book list page loads without requiring authentication
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Check if delete operations lack authorization controlsInspect the delete article functionality within the module. Look for delete operations that process requests without validating session credentials or user permissions.Affected if Delete requests can be processed without any authentication token or session validation
A user is affected if the Tad Honor module is installed with a version lower than 1.47 and the book list/delete functions are accessible without authentication.
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 · scoped1.47
Implement proper authorization checks on all delete operations and validate user permissions before executing any article removal, ensuring unauthenticated requests are rejected.
Tad Honor version 1.47
- Backup the current Tad Honor installation and database before proceeding
- Download Tad Honor version 1.47 or the latest stable release from the official source (www.twcert.org.tw references Tad Honor as the affected product)
- Replace all existing Tad Honor plugin files with the new version
- Clear any application caches if applicable
- Verify the upgrade was successful by confirming the installed version is 1.47 or higher
- Test that the book list viewing function now properly enforces authorization and cannot be exploited to delete articles without authentication
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-41564 — 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-2021-41564 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
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