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PatchSiren cyber security CVE debrief

CVE-2026-15292 tibouille CVE debrief

The 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 vulnerability allows 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. The vulnerability has a CVSS score of 6.4 and is classified as MEDIUM severity. Users of the Sudoku Shortcode plugin for WordPress, particularly those with Contributor-level access and above, should be aware of this vulnerability and take steps to mitigate it.

Vendor
tibouille
Product
Sudoku Shortcode
CVSS
MEDIUM 6.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-10
Original CVE updated
2026-07-10
Advisory published
2026-07-10
Advisory updated
2026-07-10

Who should care

Users of the Sudoku Shortcode plugin for WordPress, particularly those with Contributor-level access and above, should be aware of this vulnerability and take steps to mitigate it. This includes updating the plugin to a version that addresses this vulnerability, implementing input validation and output encoding, restricting access to the plugin's functionality, and monitoring for suspicious activity.

Technical summary

The 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. This is due to insufficient input sanitization and output escaping, making 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. The vulnerability has a CVSS score of 6.4 and is classified as MEDIUM severity.

Defensive priority

Medium priority given the CVSS score of 6.4 and the potential for authenticated attackers to inject malicious scripts.

Recommended defensive actions

  • Update the Sudoku Shortcode plugin to a version that addresses this vulnerability, if available.
  • Implement input validation and output encoding for the 'background' parameter in the 'sudoku-sc' shortcode.
  • Restrict access to the plugin's functionality to prevent authenticated attackers from injecting malicious scripts.
  • Monitor for suspicious activity and implement a Web Application Firewall (WAF) to detect and prevent attacks.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-07-10T05:16:32.563Z and was last modified on 2026-07-10T16:16:25.917Z. The NVD entry is currently Deferred. This information is based on the provided source corpus and may not reflect the full scope or details of the vulnerability. Users should verify the information with the official CVE record and NVD entry for the most up-to-date and accurate information.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-10T05:16:32.563Z and has not been modified since then. The NVD entry is currently Deferred.