CVE-2025-69094: Unicamp SQL Injection Vulnerability

CVE-2025-69094 Overview

CVE-2025-69094 is a SQL injection vulnerability affecting the Unicamp WordPress theme in versions up to and including 2.2.2. The flaw allows authenticated users with Subscriber-level access to inject arbitrary SQL statements into backend database queries. Because Subscriber is the lowest privileged authenticated role on most WordPress sites, the attack surface is broad. Successful exploitation can expose confidential database contents and impact site availability. The vulnerability is categorized under [CWE-89], improper neutralization of special elements used in an SQL command.

Critical Impact
Authenticated Subscriber accounts can execute crafted SQL queries against the WordPress database, leading to confidentiality disclosure and potential denial of service on affected Unicamp theme installations.

Affected Products

Unicamp WordPress Theme versions up to and including 2.2.2
WordPress installations using the Unicamp theme with Subscriber registration enabled
Sites permitting public user registration on vulnerable Unicamp releases

Discovery Timeline

2026-07-02 - CVE-2025-69094 published to NVD
2026-07-02 - Last updated in NVD database

Technical Details for CVE-2025-69094

Vulnerability Analysis

The vulnerability resides in a code path within the Unicamp theme that constructs SQL statements using unsanitized user-supplied input. An authenticated attacker holding the Subscriber role can submit crafted parameters that alter the resulting query. The changed scope indicator on this issue reflects that a successful exploit can affect data beyond the vulnerable component, including other WordPress database tables such as wp_users and wp_usermeta.

Exploitation does not require elevated privileges or user interaction. Any account that can register on a site running Unicamp 2.2.2 or earlier meets the prerequisites. The consequence is direct access to database contents, disclosure of sensitive records, and potential integrity or availability effects depending on the injected payload.

Root Cause

The root cause is the failure to parameterize or properly sanitize input before it is concatenated into SQL queries. WordPress themes must use $wpdb->prepare() with placeholders or apply escaping helpers such as esc_sql() and sanitize_text_field() on user input. In vulnerable Unicamp releases, at least one query path bypasses these protections, permitting SQL syntax to break out of intended query boundaries.

Attack Vector

The vulnerability is remotely exploitable over the network by any authenticated Subscriber. An attacker registers or reuses a low-privilege account, then issues a request to the vulnerable theme endpoint with a crafted parameter value. The injected fragment modifies the executed SQL, allowing techniques such as UNION-based extraction or blind boolean and time-based inference to enumerate database contents.

Refer to the Patchstack Unicamp Theme Vulnerability advisory for technical details. No public proof-of-concept exploit code is available at the time of publication.

Detection Methods for CVE-2025-69094

Indicators of Compromise

Web server access logs showing SQL metacharacters such as ', UNION, SELECT, SLEEP(, or -- in query parameters directed at Unicamp theme endpoints
Unexpected authenticated Subscriber account registrations followed by immediate parameterized requests to theme-controlled URLs
Database error responses or elongated response times consistent with time-based blind SQL injection probes
Outbound queries against wp_users, wp_usermeta, or wp_options originating from Subscriber sessions

Detection Strategies

Deploy a WordPress-aware web application firewall with SQL injection signatures tuned for theme and plugin request paths
Enable MySQL general query logging or slow query logging temporarily to identify anomalous statements originating from PHP requests tied to Subscriber sessions
Correlate authentication events with request patterns showing SQL syntax in POST or GET parameters to flag exploitation attempts

Monitoring Recommendations

Monitor for spikes in low-privilege user registrations combined with immediate theme endpoint access
Alert on database errors emitted in HTTP responses, which often indicate injection probing
Track file integrity of the wp-content/themes/unicamp/ directory to detect tampering post-compromise

How to Mitigate CVE-2025-69094

Immediate Actions Required

Update the Unicamp theme to a version later than 2.2.2 as soon as the vendor releases a patched build
Disable open user registration on WordPress sites using Unicamp until the patch is applied
Audit existing Subscriber accounts and remove any that were created recently or exhibit anomalous activity
Rotate WordPress administrator passwords and secret keys defined in wp-config.php if exploitation is suspected

Patch Information

At the time of publication, consult the Patchstack Unicamp Theme Vulnerability advisory for the current patched version and upgrade guidance. Apply the vendor-supplied update through the WordPress theme updater once available.

Workarounds

Restrict access to vulnerable theme endpoints at the web server or WAF layer until an upgrade is applied
Temporarily set users_can_register to false in WordPress general settings to eliminate the Subscriber attack surface
Deploy a virtual patch through Patchstack or an equivalent WAF service that blocks SQL injection payloads targeting the Unicamp theme
Enforce least-privilege database credentials so the WordPress database user cannot execute schema-modifying statements

bash

# Configuration example: disable public registration and enforce read-only theme files
wp option update users_can_register 0
chmod -R 555 wp-content/themes/unicamp/