CVE-2026-48881
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 · uneditedUnauthenticated Broken Access Control in TrueBooker <= 1.1.9 versions.
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 confidenceThis is a Critical (CVSS 9.1) Unauthenticated Broken Access Control vulnerability affecting TrueBooker plugin versions 1.1.9 and below. The vulnerability allows unauthenticated attackers to access functionality or data that should require proper authorization, likely due to missing or insufficient access control checks on certain endpoints or actions within the booking system.
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
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.
-
Identify TrueBooker plugin versionAccess the WordPress admin panel, navigate to Plugins > Installed Plugins, locate TrueBooker, and record the version number displayed. Alternatively, check the plugin's main PHP file header for the 'Version' field.Affected if The installed version is 1.1.9 or lower, or the version field cannot be verified (missing).
-
Inspect booking system endpointsReview the site for booking-related URLs or API endpoints (commonly found in plugin documentation or by enumerating common paths like /wp-json/truebooker/, /booking/, or similar). Use a web proxy or curl to send requests to these endpoints without providing authentication credentials.Affected if Requests to booking endpoints return sensitive data, booking confirmations, or administrative functions without requiring login or returning 401/403 errors.
-
Test unauthenticated booking actionsAttempt to perform booking actions (such as creating, modifying, or deleting bookings, or accessing customer data) using direct HTTP requests without including valid authentication tokens or session cookies.Affected if Actions complete successfully or return booking/scheduling data that should be restricted to authenticated users only.
-
Review access control configurationExamine the TrueBooker plugin settings page in the WordPress admin under Settings > TrueBooker (or similar) for any access control, permission, or authorization settings. Check if there are options to require login for booking functions.Affected if No access control restrictions are found, or the plugin lacks authorization configuration options entirely.
If TrueBooker version is 1.1.9 or below AND unauthenticated requests to booking endpoints succeed in accessing or modifying booking data, the environment is affected by this vulnerability.
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 TrueBooker to the latest version with the patch applied, or implement proper authentication and authorization checks on all sensitive endpoints if no patched version is available. If exploitation is suspected, conduct a full security audit and review access logs.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 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 $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-48881 — 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-2026-48881 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