CVE-2025-49989
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 App Cheap App Builder app-builder allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects App Builder: from n/a through <= 5.5.6.
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 App Cheap App Builder's app-builder component allows attackers to exploit incorrectly configured access control security levels. The application fails to properly validate user authorization before granting access to certain functionality or resources, enabling unauthorized actions within the application.
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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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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Identify App Cheap App Builder installationLocate the application installation directory and verify the app-builder component is present. Common locations include web server document roots, application directories, or plugin folders. Look for files or modules named 'app-builder' or related to the builder functionality.Affected if The app-builder component is found and accessible in the application environment
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Determine the installed versionCheck the application version by examining version files, composer.json, package.json, or the application dashboard if available. Compare the version against any known releases of App Cheap App Builder.Affected if A specific version cannot be determined or the version predates available patches
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Verify access control security level configurationExamine the application's access control configuration files or settings panel. Look for security level settings related to the app-builder component. Check whether authorization rules are defined for builder functionality.Affected if Access control security levels are set to a permissive configuration or are not explicitly defined for the app-builder component
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Test authorization enforcement on builder endpointsIf possible, attempt to access app-builder functionality with a low-privilege or unauthenticated account. Observe whether the application grants access without proper authorization validation.Affected if Unauthorized or low-privilege users can access app-builder functionality that should require elevated privileges
The environment is affected if the app-builder component is present and access control security levels are not properly configured or enforced.
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 dataImplement proper authorization checks at all access control boundaries and ensure the access control security levels are correctly configured according to the principle of least privilege.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-49989 — 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-2025-49989 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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