CVE-2026-54827 Overview
CVE-2026-54827 is an unauthenticated SQL injection vulnerability affecting the Real Estate 7 WordPress theme in versions up to and including 3.5.9. The flaw is classified under CWE-89, Improper Neutralization of Special Elements used in an SQL Command. Remote attackers can send crafted requests to the vulnerable theme without authentication. Successful exploitation allows manipulation of backend database queries, exposing sensitive data stored in the WordPress database.
Critical Impact
Unauthenticated attackers can inject arbitrary SQL statements over the network against WordPress sites running the Real Estate 7 theme <= 3.5.9, enabling database content exposure and integrity impact on connected components.
Affected Products
- Real Estate 7 WordPress theme versions <= 3.5.9
- WordPress installations bundling the vulnerable theme
- Sites with the theme active on public-facing pages
Discovery Timeline
- 2026-06-26 - CVE-2026-54827 published to NVD
- 2026-06-26 - Last updated in NVD database
Technical Details for CVE-2026-54827
Vulnerability Analysis
The Real Estate 7 theme fails to properly neutralize user-supplied input before incorporating it into SQL statements executed against the WordPress database. Because the injection point is reachable without authentication, any remote actor can trigger the flaw over the network with low attack complexity and no user interaction. The scope is marked as changed, meaning the impact extends beyond the vulnerable component to the underlying database and any data shared with other WordPress components.
The advisory published by Patchstack confirms the class as SQL injection against a theme parameter. Confidentiality impact is high, while integrity is not directly affected and availability impact is low, consistent with data disclosure through malformed queries.
Root Cause
The root cause is missing or insufficient input sanitization and parameterization in one or more query paths exposed by the Real Estate 7 theme. User-controlled request parameters are concatenated into SQL statements instead of being bound as parameters via the $wpdb->prepare() API. This allows attacker-controlled fragments to alter query logic.
Attack Vector
Exploitation occurs over HTTP or HTTPS against the vulnerable WordPress endpoint exposed by the theme. The attacker submits crafted parameter values containing SQL metacharacters and payloads such as UNION SELECT statements or boolean-based conditionals. No credentials, session, or user interaction are required. A single unauthenticated request can trigger the injection.
No verified proof-of-concept code is publicly available at this time. Refer to the Patchstack advisory for coordinated disclosure details.
Detection Methods for CVE-2026-54827
Indicators of Compromise
- Unusual HTTP request parameters containing SQL keywords such as UNION, SELECT, SLEEP(, INFORMATION_SCHEMA, or encoded variants against Real Estate 7 theme endpoints.
- Spikes in 500-series responses or unusually large response bodies from theme-handled URLs.
- Database error strings such as You have an error in your SQL syntax appearing in web server logs or client responses.
- Sequential requests from a single source enumerating parameter values against the same theme route.
Detection Strategies
- Deploy Web Application Firewall (WAF) rules that flag SQL injection patterns targeting query parameters used by the theme.
- Enable and centralize WordPress access logs, and correlate requests to theme paths with backend database error events.
- Baseline normal parameter values for theme endpoints and alert on entropy or length anomalies indicative of payload injection.
Monitoring Recommendations
- Monitor MySQL or MariaDB slow query and error logs for syntax errors originating from PHP requests to the theme.
- Alert on outbound data volume anomalies from the web tier that may indicate data exfiltration via UNION-based extraction.
- Track authentication and privilege events on the WordPress admin account for signs of follow-on compromise after data disclosure.
How to Mitigate CVE-2026-54827
Immediate Actions Required
- Identify all WordPress instances running the Real Estate 7 theme at version <= 3.5.9 and prioritize them for remediation.
- Restrict access to affected sites through a WAF with SQL injection rulesets while patching is in progress.
- Rotate WordPress database credentials and any secrets stored in wp_options if exposure is suspected.
- Review logs for prior exploitation attempts using the indicators above.
Patch Information
Consult the Patchstack advisory for the Real Estate 7 theme for the fixed release. Upgrade the theme to a version later than 3.5.9 as soon as the vendor publishes a patched build. Apply the update in a staging environment first, then roll out to production.
Workarounds
- Deactivate the Real Estate 7 theme and switch to a maintained alternative until a fixed version is applied.
- Block requests to theme-specific endpoints at the WAF or reverse proxy layer if deactivation is not feasible.
- Enforce least privilege on the database user configured in wp-config.php, removing FILE, CREATE, and DROP privileges where possible.
- Enable Patchstack or equivalent virtual patching to filter known SQL injection payloads targeting this CVE.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
