CVE-2025-9849
Html Social share buttons <= 2.1.16 - Authenticated (Contributor+) Stored Cross-Site Scripting
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | alimuzzamanalim |
| Product | html social share buttons |
| Published | Sep 6, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
alimuzzamanalim / Html Social share buttons
0 ≤ 2.1.16
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/d11217ec-55a6-4422-9995-4cc1761d430e?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/html-social-share-buttons/trunk/html-social-share.php#L304 github.com: https://github.com/alimuzzaman/html-social-share-buttons/blob/a614c9ce5731417edcf01747eacd814c754cc2d4/html-social-share.php#L307 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3355844%40html-social-share-buttons&new=3355844%40html-social-share-buttons&sfp_email=&sfph_mail=#file4
Credits
Peter Thaleikis