CVE-2026-2358

Summary

The WP ULike plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [wp_ulike_likers_box] shortcode template attribute in all versions up to, and including, 5.0.1. This is due to the use of html_entity_decode() on shortcode attributes without subsequent output sanitization, which effectively bypasses WordPress's wp_kses_post() content filtering. 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. The post must have at least one like for the XSS to render.

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/74a7db23-f91c-452b-bc24-58fda69caf17?source=cve
• https://plugins.trac.wordpress.org/browser/wp-ulike/trunk/includes/hooks/shortcodes.php#L209
• https://plugins.trac.wordpress.org/browser/wp-ulike/trunk/includes/functions/utilities.php#L251
• https://plugins.trac.wordpress.org/browser/wp-ulike/trunk/includes/functions/utilities.php#L226
• https://plugins.trac.wordpress.org/browser/wp-ulike/trunk/includes/functions/general.php#L375
• https://github.com/Alimir/wp-ulike/commit/3dcce696ea251b3733448332cc167e03b2a17c12
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3475381%40wp-ulike%2Ftrunk&old=3457255%40wp-ulike%2Ftrunk&sfp_email=&sfph_mail=

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