CVE-2024-53762
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 · uneditedCross-Site Request Forgery (CSRF) vulnerability in FasterThemes FastBook fastbook-responsive-appointment-booking-and-scheduling-system allows Stored XSS.This issue affects FastBook: from n/a through <= 1.1.
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 confidenceCross-Site Request Forgery (CSRF) vulnerability in the FastBook WordPress appointment booking plugin allows attackers to inject malicious scripts (Stored XSS) by tricking authenticated administrators into submitting crafted requests. Attackers can exploit this by luring admin users to malicious sites or embedding crafted requests, causing the XSS payload to be stored and executed when other users view affected pages.
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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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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Verify FastBook plugin installationIn WordPress admin, go to Plugins > Installed Plugins and search for 'FastBook' or check the plugins directory for fastbook-related folders. Note the installed version if present.Affected if The FastBook plugin is installed and the version cannot be confirmed as patched against CVE-2024-53762
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Check plugin version against latest releaseCompare your installed version to the current version available at wordpress.org/plugins/fastbook-appointments or contact the plugin vendor for version guidance.Affected if The installed version is older than the patched version for this CSRF-to-Stored-XSS vulnerability
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Inspect plugin database entries for malicious scriptsQuery the WordPress database (wp_options table and any custom fastbook tables) for unusual script tags, iframe elements, or javascript: URLs. Look for encoded or obfuscated payloads.Affected if Any stored XSS payloads (script tags, event handlers, javascript: links) are found in plugin configuration or appointment data
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Review plugin admin pages for XSS indicatorsView the source HTML of FastBook admin pages (appointment forms, settings pages, customer lists) in a browser. Search for unexpected <script>, <img onerror>, <svg onload>, or similar XSS vectors.Affected if Stored XSS payloads are present in any rendered plugin pages visible to administrators or customers
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Check for unauthorized form submissionsReview server access logs and WordPress activity logs for POST requests to fastbook-admin-ajax.php or plugin admin pages from unexpected referrers or with missing CSRF token headers.Affected if Form submission requests lack proper anti-CSRF token validation headers
A user is affected if the FastBook plugin is installed without the CVE-2024-53762 patch and any stored XSS payloads are found in the plugin's database entries or rendered pages.
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 anti-CSRF tokens on all state-changing forms and validate/sanitize all user inputs server-side. Until an official patch is released, consider disabling or removing the plugin if immediate remediation is not possible.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-53762 — 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-2024-53762 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