CVE-2026-3513

Summary

The TableOn – WordPress Posts Table Filterable plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tableon_button' shortcode in all versions up to and including 1.0.4.4. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes such as 'class', 'help_link', 'popup_title', and 'help_title'. The do_shortcode_button() function extracts these attributes without sanitization and passes them to TABLEON_HELPER::draw_html_item(), which concatenates attribute values into HTML using single quotes without escaping (line 29: $item .= " {$key}='{$value}'"). 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/33490873-da99-465e-bfb6-44d2ba84f3ee?source=cve
• https://plugins.trac.wordpress.org/browser/posts-table-filterable/trunk/lib/helper.php#L29
• https://plugins.trac.wordpress.org/browser/posts-table-filterable/trunk/index.php#L489
• https://plugins.trac.wordpress.org/browser/posts-table-filterable/trunk/index.php#L495
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3492852%40posts-table-filterable&new=3492852%40posts-table-filterable&sfp_email=&sfph_mail=
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3476421%40posts-table-filterable&new=3476421%40posts-table-filterable&sfp_email=&sfph_mail=

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