Description

Subscriber SQL Injection in Community by PeepSo <= 9.0.5.2 versions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.5",
  "pubDate": "2026-08-19T13:17:50.687Z",
  "pubdate": "2026-08-19T13:17:50.687Z",
  "executiveSummary": "An SQL injection vulnerability exists in the Community by PeepSo plugin in versions up to and including 9.0.5.2. This security flaw allows authenticated users with subscriber-level privileges to manipulate SQL queries executed by the underlying database management system. Successful exploitation of this vulnerability can lead to unauthorized database access, data exfiltration, data manipulation, and potentially complete compromise of the affected WordPress site depending on database privileges.\nThe vulnerability stems from improper neutralization of special elements used in SQL commands within user-supplied input parameters handled by the vulnerable component. Attackers possessing standard subscriber privileges can craft malicious HTTP requests containing SQL payload structures designed to bypass input validation filters. The impact is critical as it undermines the confidentiality, integrity, and availability of the stored data within the database schema.",
  "technicalDetails": "The vulnerability resides in the Community by PeepSo plugin, specifically affecting versions 9.0.5.2 and prior. The root cause of the security defect is insufficient parameterization or improper sanitization of input data before it is concatenated directly into SQL queries executed by the WordPress database abstraction layer (e.g., wpdb).\nAuthentication is required to exploit this vulnerability, specifically a valid user account with subscriber-level privileges. Network exposure is present via the standard web interface where HTTP/HTTPS requests are processed by the vulnerable plugin endpoints. The attack vector involves submitting maliciously crafted parameters containing SQL injection payloads via HTTP GET or POST requests.\nThe step-by-step attack flow proceeds as follows: First, the authenticated attacker with subscriber privileges identifies a vulnerable input parameter handled by a PeepSo backend function or AJAX endpoint. Second, the attacker crafts a payload utilizing SQL syntax manipulation techniques, such as UNION-based injections, boolean-based blind inferences, or time-based delays. Third, the attacker transmits the HTTP request containing the malicious payload to the server. Fourth, the vulnerable component ingests the tainted input and concatenates it directly into an active SQL query string without adequate escaping or use of prepared statements. Fifth, the database execution engine parses and executes the modified query, returning sensitive database contents, error messages, or executing unauthorized database commands back through the application response layer."
}