CVE-2026-27428: 
WordPress vulnerability analysis and mitigation

CVE-2026-27428 is a SQL Injection vulnerability (CWE-89) in the Eagle-Themes Eagle Booking WordPress plugin, affecting all versions through 1.3.4.3. The vulnerability was disclosed on March 5, 2026, by Patchstack, and the CVSS score was subsequently added by CISA-ADP on March 9, 2026. It carries a CVSS v3.1 base score of 8.5 (High), requiring only low-privilege authentication with no user interaction (Feedly, Patchstack).

The vulnerability is classified as CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), meaning user-supplied input is not properly sanitized before being incorporated into SQL queries within the Eagle Booking plugin. An authenticated attacker with low privileges can craft malicious SQL statements that are passed directly to the database, enabling arbitrary query execution. The attack vector is network-based, requires low complexity, and the scope is changed — indicating the impact extends beyond the plugin itself to the underlying database (Feedly, Patchstack).

Successful exploitation allows an authenticated attacker to execute arbitrary SQL commands against the WordPress site's database, resulting in high confidentiality impact and low availability impact. Sensitive data such as user credentials, personal information, booking records, and WordPress configuration details could be extracted without authorization. The changed scope indicates the vulnerability's impact can extend beyond the plugin's own data boundary to other data stored in the shared database (Feedly).

There is currently no public proof-of-concept exploit available, and no evidence of active in-the-wild exploitation has been observed. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. The EPSS score is approximately 0.021%, reflecting a low probability of exploitation in the near term (Feedly).

1. Reconnaissance: Identify WordPress sites running the Eagle Booking plugin (version ≤ 1.3.4.3) using tools like WPScan, Shodan, or manual inspection of plugin directories.
2. Authentication: Obtain a low-privilege account on the target WordPress site (e.g., subscriber or customer role).
3. Identify vulnerable parameter: Interact with the Eagle Booking plugin's booking-related functionality and intercept HTTP requests using a proxy tool such as Burp Suite to identify parameters passed to SQL queries.
4. Inject SQL payload: Modify the vulnerable parameter to include SQL injection payloads (e.g., ' OR 1=1--, UNION SELECT statements) to manipulate or extract data from the database.
5. Extract sensitive data: Use time-based or UNION-based SQL injection techniques to enumerate database tables, extract WordPress user credentials (hashed passwords), and access other sensitive records stored in the database.
6. Escalate access: Use extracted credentials (after cracking hashed passwords) to escalate privileges within the WordPress site or pivot to other systems (Feedly, Patchstack).

• Network: Unusual HTTP requests to Eagle Booking plugin endpoints containing SQL metacharacters (e.g., single quotes ', UNION, SELECT, --, OR 1=1) in query parameters or POST body data.
• Logs: WordPress or web server access logs showing repeated requests to booking-related plugin endpoints with anomalous parameter values; database error messages logged indicating malformed SQL queries.
• Database: Unexpected or unauthorized queries in database query logs referencing tables outside the plugin's normal scope (e.g., wp_users, wp_options); evidence of UNION SELECT or INFORMATION_SCHEMA queries.
• File System: Unexpected new admin accounts or modified user records in the WordPress database following suspicious activity.

No patch has been confirmed as available for Eagle Booking at the time of disclosure; users should check the WordPress plugin repository or the Eagle-Themes vendor for an updated version beyond 1.3.4.3 (Feedly). As an immediate workaround, consider deactivating or removing the Eagle Booking plugin until a patched version is released. Additional mitigations include deploying a Web Application Firewall (WAF) with SQL injection detection rules, restricting database user privileges to the minimum required, and monitoring database query logs for suspicious patterns (Feedly).