CVE-2026-6255

Summary

The Simple Owl Shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'num' attribute of the 'owls_wrapper' shortcode in all versions up to, and including, 2.1.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

Affected Software

Weaknesses

• CWE-79: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/e33a2f27-20c2-4963-9558-1eead0515690?source=cve
• https://plugins.trac.wordpress.org/browser/simple-owl-shortcodes/tags/2.1.1/inc/owls_wrapper.php#L11
• https://plugins.trac.wordpress.org/browser/simple-owl-shortcodes/trunk/inc/owls_wrapper.php#L11

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