dbcve.org
SQL InjectionWeakness · CWE-89

CVE-2026-2508

MEDIUM · 6.5 CVSS v3.1 Published 2026-06-25
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable Zero-click 8 weeks old

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 · unedited
The Gravity Forms Booking plugin for WordPress is vulnerable to time-based SQL Injection via the ‘staff_id’ parameter in all versions up to, and including, 2.7.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

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 confidence

The Gravity Forms Booking WordPress plugin (versions up to 2.7.1) is vulnerable to time-based SQL Injection via the 'staff_id' parameter. The vulnerability stems from insufficient input escaping and lack of prepared statements in the SQL query, allowing authenticated attackers with Subscriber-level access to inject malicious SQL queries and extract sensitive database information.

MitigationUpdate the Gravity Forms Booking plugin to the latest version once available. Until then, restrict user registration capabilities and audit user accounts with Subscriber-level access. The fix requires using prepared statements with proper parameter binding for the staff_id parameter in all database queries.

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Gravity Forms Booking plugin is installed
    Check the WordPress plugins directory for 'gravity-forms-booking' folder or review installed plugins via WordPress admin under Plugins > Installed Plugins, or inspect wp-content/plugins directory
    Affected if The plugin folder 'gravity-forms-booking' or similar naming exists in the WordPress installation
  2. Determine the installed plugin version
    Access the plugin header file (usually main plugin file) and look for the 'Version' comment, or view the version in WordPress admin plugin list
    Affected if The version listed is 2.7.1 or any version up to and including 2.7.1 (no fixed version provided)
  3. Confirm the staff_id parameter feature is accessible
    Review the plugin code for handlers processing the 'staff_id' parameter in GET/POST requests, typically found in PHP files handling booking or staff-related functionality
    Affected if Code exists that processes a 'staff_id' parameter without proper preparation or escaping
  4. Verify WordPress user roles with Subscriber access
    In WordPress admin, navigate to Users > All Users and check for accounts with the Subscriber role, or query the wp_users and wp_usermeta tables for user_level or wp_capabilities meta_value containing 'subscriber'
    Affected if Any user account with Subscriber-level role exists on the WordPress site

A user is affected if the Gravity Forms Booking plugin (version 2.7.1 or below) is installed, the staff_id parameter feature is active, and any Subscriber-level user account exists on the WordPress site.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update the Gravity Forms Booking plugin to the latest version once available. Until then, restrict user registration capabilities and audit user accounts with Subscriber-level access. The fix requires using prepared statements with proper parameter binding for the staff_id parameter in all database queries.

Recommended fix Moderate confidence

Update to latest available version (any version after 2.7.1 contains the fix)

  1. Log in to WordPress admin dashboard
  2. Navigate to Plugins > Installed Plugins
  3. Locate the Gravity Forms Booking plugin
  4. Check if an update is available (version should be higher than 2.7.1)
  5. If an update is available, click 'Update Now' to install the latest version
  6. Verify the update was successful by checking the plugin version after updating

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2026-2508 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-2508 in production — separate from our analysis above.

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.

What this is

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.

What belongs here
  • 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