CVE-2025-9849

Description

The Html Social share buttons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'zm_sh_btn' shortcode in all versions up to, and including, 2.1.16 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.

PUBLISHED Reserved 2025-09-02 | Published 2025-09-06 | Updated 2025-09-08 | Assigner Wordfence

Problem types

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

Product status

Timeline

Credits

Peter Thaleikis finder

References

www.wordfence.com/...-55a6-4422-9995-4cc1761d430e?source=cve

plugins.trac.wordpress.org/...ns/trunk/html-social-share.php

github.com/...dcf01747eacd814c754cc2d4/html-social-share.php

plugins.trac.wordpress.org/...-buttons&sfp_email=&sfph_mail=

cve.org (CVE-2025-9849)

nvd.nist.gov (CVE-2025-9849)

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