CVE-2025-30821
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 · uneditedMissing Authorization vulnerability in otacke SNORDIAN's H5PxAPIkatchu h5pxapikatchu allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects SNORDIAN's H5PxAPIkatchu: from n/a through <= 0.4.14.
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 confidenceMissing Authorization vulnerability in H5PxAPIkatchu plugin versions <= 0.4.14 allows attackers to access functionality that is not properly constrained by Access Control Lists (ACLs). This is a horizontal or vertical privilege escalation issue where unauthenticated or lower-privileged users can reach protected functionality.
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
- None
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.
-
Identify if H5PxAPIkatchu plugin is installedSearch the WordPress wp-content/plugins directory for a folder named 'h5pxapikatchu' or similar. Check the site's active plugins list via WordPress admin or by inspecting the plugins database table.Affected if The plugin folder exists in the plugins directory or is listed in the active plugins.
-
Determine the installed version of H5PxAPIkatchuOpen the main plugin PHP file (typically plugin.php or index.php inside the plugin folder) and locate the version comment/header, or check the readme.txt file for the 'Stable tag' entry.Affected if The version number found is 0.4.14 or lower.
-
Verify the version is within the affected rangeCompare the identified version number to the affected range: any version <= 0.4.14 is vulnerable. Versions above 0.4.14 are patched.Affected if The installed version is 0.4.14 or any earlier release (e.g., 0.4.13, 0.4.0, etc.).
-
Inspect protected functionality for ACL enforcementIdentify sensitive endpoints or functions within the H5PxAPIkatchu plugin (API routes, admin actions, data processing functions). Attempt to access or trigger these functions using a lower-privileged or unauthenticated request and verify whether the plugin properly validates user permissions before executing the action.Affected if Protected functionality executes or returns data without requiring proper authentication or adequate permission checks.
A user is affected if the H5PxAPIkatchu plugin is installed with version 0.4.14 or lower and sensitive endpoints within the plugin are accessible without proper authorization checks.
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 H5PxAPIkatchu (> 0.4.14) and implement proper ACL enforcement on all sensitive endpoints and functions within the plugin.
- 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-2025-30821 — 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-2025-30821 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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