CVE-2025-69135 Overview
CVE-2025-69135 is a SQL injection vulnerability in the Events Schedule - WordPress Events Calendar Plugin in versions up to and including 2.7.2. The flaw allows authenticated users with Subscriber-level privileges to inject arbitrary SQL into database queries. Because the WordPress Subscriber role is the lowest privilege tier and is often available via open registration, the barrier to exploitation is low. The issue is tracked under CWE-89: Improper Neutralization of Special Elements used in an SQL Command.
Critical Impact
Authenticated Subscriber-level attackers can execute arbitrary SQL against the WordPress database, exposing sensitive content and disrupting site availability.
Affected Products
- Events Schedule - WordPress Events Calendar Plugin versions <= 2.7.2
- WordPress sites that allow Subscriber-level registration with the plugin installed
- Hosting environments running the vulnerable plugin alongside shared database backends
Discovery Timeline
- 2026-06-17 - CVE-2025-69135 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-69135
Vulnerability Analysis
The vulnerability stems from improper neutralization of user-supplied input passed into SQL queries within the Events Schedule plugin. Input reaching the database layer is not parameterized or sanitized, enabling injection of attacker-controlled SQL fragments. The scope is Changed in CVSS terms, meaning successful exploitation impacts resources beyond the vulnerable component. Confidentiality impact is High and availability impact is Low, reflecting strong potential for data exfiltration and limited disruption of service. The flaw can be triggered over the network with low attack complexity once an attacker holds Subscriber credentials.
Root Cause
The plugin constructs SQL statements that incorporate request parameters without prepared statements or proper escaping through $wpdb->prepare(). This pattern, classified as [CWE-89], allows metacharacters such as quotes and union operators to alter query structure. Because the affected endpoint is reachable by any logged-in user, the access control checks limit the role but do not validate the data.
Attack Vector
An attacker first obtains a Subscriber account, which is trivial on sites with open registration. The attacker then sends crafted requests to a plugin endpoint that accepts injectable parameters. By appending UNION SELECT statements or boolean-based payloads, the attacker can read arbitrary tables including wp_users and wp_usermeta. This exposes password hashes, session tokens, and private content stored in the database.
No verified proof-of-concept code is publicly available. See the Patchstack Vulnerability Report for additional technical context.
Detection Methods for CVE-2025-69135
Indicators of Compromise
- Web server access logs containing SQL metacharacters such as UNION, SELECT, --, or 0x in plugin request parameters
- Unexpected database errors referencing the Events Schedule plugin tables
- Authentication attempts or content access from Subscriber accounts immediately followed by anomalous query volume
- New or modified administrator accounts created shortly after Subscriber activity
Detection Strategies
- Inspect HTTP request bodies and query strings sent to Events Schedule plugin endpoints for SQL syntax
- Correlate WordPress audit logs with database slow-query logs to identify malformed statements originating from low-privilege users
- Deploy a Web Application Firewall ruleset that flags SQL injection patterns against the plugin URI namespace
Monitoring Recommendations
- Enable verbose logging for wp-admin/admin-ajax.php and other plugin entry points
- Alert on Subscriber accounts issuing requests outside normal browsing patterns, such as repeated parameter fuzzing
- Monitor database user activity for anomalous SELECT queries against wp_users, wp_usermeta, and wp_options
How to Mitigate CVE-2025-69135
Immediate Actions Required
- Update the Events Schedule - WordPress Events Calendar Plugin to a version newer than 2.7.2 as soon as a fixed release is published by the vendor
- Disable the plugin on production sites until a patched version is installed
- Audit existing Subscriber accounts and remove any that appear suspicious or unused
- Rotate WordPress administrator passwords and secret keys defined in wp-config.php
Patch Information
Refer to the Patchstack Vulnerability Report for the current patch status and vendor-supplied remediation guidance. Apply the vendor update through the WordPress plugin dashboard or by replacing the plugin directory manually.
Workarounds
- Disable open user registration by unchecking Settings → General → Membership in the WordPress admin
- Deploy WAF rules that block SQL metacharacters in requests targeting the plugin path
- Restrict access to the plugin endpoints via web server allow/deny rules until patched
# Configuration example: disable the plugin via WP-CLI until a patch is applied
wp plugin deactivate weekly-class
wp user list --role=subscriber --field=user_login
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
