ElementCamp <= 2.3.6 - Authenticated (Author+) SQL Injection via 'meta_query[compare]' Parameter
Strategic Overview
- Status
- Patched in 2.3.8
- Affected Plugin
- ElementCamp
- Affected Version
<= 2.3.6- CVSS
- 6.5Medium
- Weakness type
- CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
- CVE
CVE-2026-2503
At a glance
CVE-2026-2503 is a medium-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the ElementCamp WordPress plugin, affecting versions <= 2.3.6. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires an authenticated account at Author level or above. The issue is fixed in version 2.3.8; sites on affected versions should update now. Disclosed March 2026, reported by Itthidej Aramsri (Boeing777).
Vulnerability Overview
The ElementCamp plugin for WordPress is vulnerable to time-based SQL Injection via the 'meta_query[compare]' parameter in the 'tcg_select2_search_post' AJAX action in all versions up to, and including, 2.3.6. This is due to the user-supplied compare value being placed as an SQL operator in the query without validation against an allowlist of comparison operators. The value is passed through esc_sql(), but since the payload operates as an operator (not inside quotes), esc_sql() has no effect on payloads that don't contain quote characters. This makes it possible for authenticated attackers, with Author-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 Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality.
CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
ElementCamp <= 2.3.6 carries this weakness at meta_query[compare], and reaching it takes an account at Author level or above. SQL injection happens when request data is concatenated into a query instead of being bound as a parameter, letting an attacker change the structure of the statement rather than just its values.
A working injection can read any table the database user can see, which on a WordPress install means user records, password hashes and session or API secrets stored in options. For ElementCamp the fix is 2.3.8: builds <= 2.3.6 are affected, anything from 2.3.8 onward is not.
Remediation
Update to version 2.3.8, or a newer patched version
How does WordSec protect against this?
An attacker needs Author access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: ElementCamp 2.3.8 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in ElementCamp
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C