CVE-2025-12042
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 · uneditedThe Course Booking System plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check in the csv-export.php file in all versions up to, and including, 6.1.5. This makes it possible for unauthenticated attackers to directly access the file and obtain an export of all booking data.
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 · high confidenceThe Course Booking System WordPress plugin has a missing capability check in the csv-export.php file, allowing unauthenticated users to directly access this endpoint and export all booking data from the database. This is a classic Insecure Direct Object Reference (IDOR) vulnerability where authorization is not enforced on a sensitive data export function.
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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Check installed plugin versionNavigate to WordPress admin > Plugins > Course Booking System, or inspect the plugin's readme.txt file to find the currently installed version numberAffected if version is earlier than 6.1.6 or the version cannot be determined (assumed vulnerable)
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Locate csv-export.php in plugin directoryAccess the wp-content/plugins/course-booking-system/ directory via FTP or file manager, and verify whether the csv-export.php file existsAffected if csv-export.php file is present in the plugin directory
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Inspect csv-export.php for authorization checksOpen csv-export.php in a text editor and search for capability check functions such as current_user_can(), is_user_logged_in(), or admin initialization routinesAffected if no capability check (current_user_can) or login check is found at the beginning of the file
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Verify endpoint accessibilityAttempt to access the csv-export.php endpoint directly via curl or browser URL (e.g., /wp-content/plugins/course-booking-system/csv-export.php) without logging inAffected if the endpoint returns booking data or a successful HTTP response without requiring authentication
A user is affected if the plugin version is before 6.1.6 AND the csv-export.php file exists AND no capability check is present in that file AND the endpoint is 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.
From vendor dataAdd proper capability checks (e.g., current_user_can('manage_options')) and nonce validation to csv-export.php. Update to version 6.1.6 or later when available, or remove the csv-export.php file if not needed until a patch is applied.
- Consultation2.0 h
- Implementation1.0 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 $1,696.
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Free · runs locallyCheck whether your project pulls in CVE-2025-12042 — 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-2025-12042 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