CVE-2026-12090
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 Taskbuilder – Project Management & Task Management Tool With Kanban Board plugin for WordPress is vulnerable to generic SQL Injection via the 'wppm_proj_filter' parameter in all versions up to, and including, 5.0.8 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. No nonce verification is performed on the wp_ajax_wppm_view_project_tasks handler, meaning any authenticated session — including subscriber-level — can reach the vulnerable code path without any additional preconditions.
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 confidenceSQL Injection vulnerability in the Taskbuilder WordPress plugin allows authenticated users with subscriber-level access to inject malicious SQL queries via the 'wppm_proj_filter' parameter in the wp_ajax_wppm_view_project_tasks handler due to insufficient input sanitization and lack of prepared statements.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/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 Taskbuilder plugin is installedNavigate to WordPress admin dashboard > Plugins and confirm the Taskbuilder plugin appears in the installed plugins list, or query the database wp_options table for option_name 'active_plugins'Affected if Taskbuilder plugin is present and active in WordPress
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Retrieve the installed Taskbuilder versionAccess WordPress admin > Plugins > Taskbuilder and read the version number displayed, or inspect the plugin main file header for 'Version:' tag, or query wp_options for 'taskbuilder_version' or similar version optionAffected if Version is lower than 5.0.9 (the patched release)
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Confirm the vulnerable AJAX handler existsInspect the Taskbuilder plugin files for 'wp_ajax_wppm_view_project_tasks' function definition, typically in the main plugin file or an ajax-handler.php fileAffected if The wp_ajax_wppm_view_project_tasks handler is present in the plugin code
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Verify subscriber-level access to the endpointCheck WordPress user roles and confirm subscribers can make AJAX requests to /wp-admin/admin-ajax.php?action=wppm_view_project_tasks, or inspect the add_action('wp_ajax_wppm_view_project_tasks') call for privilege checksAffected if No capability check or role verification is enforced before processing the wppm_proj_filter parameter
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Test for lack of prepared statements in the SQL queryReview the wppm_view_project_tasks handler source code and locate the database query using the wppm_proj_filter parameter; confirm it uses direct string concatenation rather than $wpdb->prepare() or parameterized queriesAffected if The wppm_proj_filter parameter is used directly in SQL without sanitization or prepared statements
A user is affected if the Taskbuilder plugin is installed with a version below 5.0.9 and the wp_ajax_wppm_view_project_tasks AJAX handler is accessible to subscriber-level users without proper input sanitization or prepared statements in the query logic.
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.
From vendor dataUpdate the Taskbuilder plugin to version 5.0.9 or later which includes proper input sanitization and prepared SQL statements. If immediate patching is not feasible, disable the wp_ajax_wppm_view_project_tasks ajax handler until the fix can be applied.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-12090 — 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-2026-12090 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