CVE-2026-15290
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to blind SQL Injection via the search parameter in all versions up to, and including, 2.10.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. 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. This vulnerability was partially patched in version 2.9.2 when initially addressing CVE-2025-0308.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe Ultimate Member WordPress plugin versions up to 2.10.1 contain a blind SQL injection vulnerability in the search parameter. Due to insufficient input escaping and lack of prepared statements, unauthenticated attackers can append malicious SQL queries to extract sensitive data from the database.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify Ultimate Member plugin is installedLog into WordPress admin panel and navigate to Plugins > Installed Plugins, or inspect the /wp-content/plugins/ directory for the ultimate-member folder, or query the wp_options table for the active_plugins optionAffected if Ultimate Member plugin is not found in the WordPress installation
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Check installed Ultimate Member versionIn WordPress admin, go to Plugins > Installed Plugins and locate Ultimate Member to view the version number, or read the version from /wp-content/plugins/ultimate-member/readme.txt, or query the wp_options table for the option_name containing 'ultimate_member_version'Affected if The version is 2.10.1 or lower (any version up to and including 2.10.1)
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Confirm member directory search feature is enabledNavigate to Ultimate Member > Directories in WordPress admin, or inspect the wp_um_directory table in the database, or check if the shortcode [ultimatemember] or a directory page exists on the siteAffected if A member directory with search functionality is publicly accessible (the plugin's search parameter is exposed)
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Inspect search parameter handling for SQL injection vulnerabilityReview the plugin source code in /wp-content/plugins/ultimate-member/core/um-query.php or similar files handling the search parameter, looking for direct use of $_GET['search'] or $_REQUEST['search'] without $wpdb->prepare() or esc_sql()Affected if The search parameter is used in SQL queries without proper preparation or escaping (vulnerable code pattern exists)
You are affected if Ultimate Member plugin version 2.10.1 or lower is installed and the member directory search feature is enabled, exposing the unauthenticated search parameter to potential SQL injection.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpdate to the latest plugin version after 2.10.1. As a temporary measure, consider deploying a WAF rule to block SQL injection patterns in the search parameter or disable the plugin if immediate patching is not possible.
Ultimate Member 2.10.2 or latest stable release (verify current fixed version at wordpress.org/plugins/ultimate-member)
- Check the WordPress plugin repository or Ultimate Member's official release notes for version 2.10.2 or later to confirm the full security fix
- Backup your WordPress database before performing any plugin update
- Update the Ultimate Member plugin to the latest available version (2.10.2 or later) via WordPress admin dashboard or FTP
- Verify the update was successful and test that the member directory and search functionality work correctly
- Monitor for any unusual database activity or errors in logs following the update
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,648.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-15290 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-15290 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data