CVE-2026-15292
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 Sudoku Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'background' parameter in the 'sudoku-sc' shortcode in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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 Sudoku Shortcode WordPress plugin (versions up to 1.0.0) has a stored XSS vulnerability in the 'background' parameter of the 'sudoku-sc' shortcode. Insufficient input sanitization and missing output escaping allows authenticated users with Contributor-level permissions to inject arbitrary JavaScript that executes when other users access affected pages.
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
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/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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Identify if the Sudoku Shortcode plugin is installedNavigate to Plugins > Instored Plugins in the WordPress admin dashboard and locate the 'Sudoku Shortcode' plugin. Check the version number displayed below the plugin name.Affected if The plugin is installed and the version is 1.0.0 or lower.
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Search for usage of the sudoku-sc shortcodeUse WordPress search tools or database queries to search post content for the string '[sudoku-sc' across all post types (posts, pages, custom post types).Affected if The shortcode '[sudoku-sc' is found in any published content.
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Identify if the background parameter is used in shortcode instancesExamine each instance of the sudoku-sc shortcode found and check whether the 'background' attribute is present (for example: [sudoku-sc background="#ffffff"]).Affected if The 'background' parameter is used within any sudoku-sc shortcode instance.
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Verify Contributor-level user access to create or edit contentNavigate to Users > All Users in the WordPress admin and review the roles assigned to users. Check if any users have the Contributor role.Affected if There are users with Contributor-level permissions who can create or edit content where the shortcode could be inserted.
A user is affected if the Sudoku Shortcode plugin (version 1.0.0 or lower) is installed AND the 'background' parameter is used within the sudoku-sc shortcode in any published content, allowing a Contributor-level user to have injected malicious JavaScript.
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 plugin to a patched version when available. Until then, restrict or disable shortcode usage for low-privilege users and manually validate/sanitize the 'background' parameter value using WordPress sanitization functions like sanitize_hex_color() or esc_attr() before output.
- 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-2026-15292 — 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-2026-15292 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
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