CVE-2026-9848

WP Ticket <= 6.0.4 - Unauthenticated SQL Injection via WordPress Search 's' Parameter

2026-06-12 14:23
she11f

Strategic Overview

Status
Patched in 6.0.5
Affected Plugin
Customer Support Ticket System & Helpdesk
Affected Version
<= 6.0.4
CVSS
7.5High
Weakness type
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE
CVE-2026-9848
View all Customer Support Ticket System & Helpdesk vulnerabilities

At a glance

CVE-2026-9848 is a high-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Customer Support Ticket System & Helpdesk WordPress plugin, affecting versions <= 6.0.4. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 6.0.5; sites on affected versions should update now. Disclosed June 2026, reported by she11f.

Vulnerability Overview

The WP Ticket plugin for WordPress is vulnerable to SQL Injection via the WordPress search query parameter (`s`) in versions up to, and including, 6.0.4 The plugin hooks WordPress's `posts_request` filter with `wp_ticket_com_posts_request()`, which calls `emd_author_search_results()` when the current request is an unauthenticated front-end search. That function reads `$query->query_vars['s']` — already wp_unslash()'d by `WP_Query::parse_query()`, so wp_magic_quotes protection has been stripped — and concatenates the raw value into a SQL `LIKE` clause inside a UNION sub-SELECT appended to the main query, with no `$wpdb->prepare()` or escaping. This makes it possible for unauthenticated attackers 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 privileges on the target site, 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')

Customer Support Ticket System & Helpdesk <= 6.0.4 carries this weakness at wp_ticket_com_posts_request(), and reaching it takes no account at all. 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 Customer Support Ticket System & Helpdesk the fix is 6.0.5: builds <= 6.0.4 are affected, anything from 6.0.5 onward is not.

Remediation

Update to version 6.0.5, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Customer Support Ticket System & Helpdesk 6.0.5 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-9848https://www.wordfence.com/threat-intel/vulnerabilities/id/98f16e3a-4ef3-43f9-86b2-2cf8e26f9c80https://nvd.nist.gov/vuln/detail/CVE-2026-9848

Related records

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