CVE-2025-49323: Hydra Booking SQL Injection Vulnerability

CVE-2025-49323 Overview

CVE-2025-49323 is a SQL Injection vulnerability in the Themefic Hydra Booking plugin for WordPress. The flaw stems from improper neutralization of special elements in SQL commands [CWE-89]. It affects all versions of hydra-booking up to and including 1.1.10. An authenticated attacker with low privileges can submit crafted input to inject SQL statements through vulnerable plugin endpoints. The issue carries a CVSS 3.1 base score of 8.5 because successful exploitation crosses a security scope boundary and exposes database contents beyond the plugin context.

Critical Impact
Authenticated attackers can read sensitive WordPress database contents, including user credentials and booking records, by injecting SQL through Hydra Booking plugin parameters.

Affected Products

Themefic Hydra Booking plugin for WordPress, versions up to and including 1.1.10
WordPress sites with the hydra-booking plugin installed and active
Any database backend serving the affected WordPress installation

Discovery Timeline

2025-06-06 - CVE-2025-49323 published to the National Vulnerability Database
2026-06-17 - Record last modified in NVD

Technical Details for CVE-2025-49323

Vulnerability Analysis

The Hydra Booking plugin fails to sanitize or parameterize user-controlled input before incorporating it into SQL queries. Attackers authenticated with at least subscriber-level privileges can submit crafted values to plugin endpoints, which the plugin concatenates directly into database queries. The injected SQL executes with the privileges of the WordPress database user, exposing booking data, customer details, and WordPress core tables such as wp_users and wp_usermeta.

The vulnerability is reachable over the network and requires no user interaction. Because the impact crosses from the plugin into the broader WordPress database scope, the issue is rated with scope-changed impact. Confidentiality impact is high, with limited integrity impact and partial availability impact through query manipulation. EPSS data places exploitation probability at 0.269% as of the latest scoring window.

Root Cause

The root cause is missing input validation and the absence of prepared statements in plugin database calls. Plugin code passes attacker-controlled parameters into query strings without using $wpdb->prepare() or equivalent parameter binding. This violates secure coding practices defined in [CWE-89].

Attack Vector

An attacker authenticates to the target WordPress site, then sends HTTP requests to a vulnerable Hydra Booking endpoint with SQL metacharacters embedded in parameters. The plugin appends these values into a query, allowing UNION-based or boolean-based extraction. Refer to the Patchstack advisory for CVE-2025-49323 for endpoint specifics.

No verified public proof-of-concept code is available. The vulnerability mechanism is described in prose only.

Detection Methods for CVE-2025-49323

Indicators of Compromise

HTTP requests to Hydra Booking endpoints containing SQL metacharacters such as ', UNION SELECT, SLEEP(, --, or /*
Unexpected SELECT queries against wp_users or wp_usermeta originating from the plugin process
Web server access logs showing repeated requests to /wp-admin/admin-ajax.php or REST routes registered by hydra-booking with abnormal parameter lengths
Database error messages referencing SQL syntax issues correlated with plugin requests

Detection Strategies

Deploy a web application firewall rule that inspects requests to Hydra Booking routes for SQL injection signatures
Enable WordPress query logging and alert on queries containing UNION, INFORMATION_SCHEMA, or time-delay functions
Correlate authenticated session activity with anomalous database query patterns to identify low-privileged accounts probing booking endpoints

Monitoring Recommendations

Monitor outbound database response sizes for sudden increases that indicate bulk data extraction
Audit WordPress user roles regularly and flag newly created subscriber or customer accounts performing administrative-style queries
Forward web server, PHP error, and MySQL general logs to a centralized analytics platform for cross-source correlation

How to Mitigate CVE-2025-49323

Immediate Actions Required

Identify all WordPress installations running the hydra-booking plugin at version 1.1.10 or earlier
Update the plugin to a fixed release once published by Themefic, or deactivate and remove it if no patch is available
Rotate WordPress administrator and database credentials if exploitation is suspected
Review booking records and user tables for unauthorized modifications or data exfiltration

Patch Information

Themefic has not published a fixed version in the referenced advisory. Track the Patchstack advisory for CVE-2025-49323 for patch availability and apply the vendor update as soon as it is released.

Workarounds

Restrict plugin endpoint access using .htaccess or WAF rules until a patch is applied
Limit account registration and downgrade unnecessary subscriber accounts to reduce the authenticated attack surface
Apply virtual patching through a WAF policy that blocks SQL injection payloads targeting Hydra Booking parameters

bash

# Example WAF rule snippet (ModSecurity) to block SQLi patterns on plugin routes
SecRule REQUEST_URI "@contains hydra-booking" \
  "phase:2,deny,status:403,id:1004923,\
   chain,msg:'Block SQLi attempt against Hydra Booking'"
  SecRule ARGS "@rx (?i)(union(\s|/\*.*\*/)+select|sleep\s*\(|information_schema|--\s)"