PT-2025-36353 · WordPress · Html Social Share Buttons

Peter Thaleikis · Published 2025-09-06 · Updated 2025-09-06 · CVE-2025-9849

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Html Social share buttons plugin for WordPress versions prior to 2.1.17

Description The Html Social share buttons plugin for WordPress is susceptible to Stored Cross-Site Scripting through the plugin’s zm sh btn shortcode. Insufficient input sanitization and output escaping on user-supplied attributes allows authenticated attackers with contributor-level access or higher to inject arbitrary web scripts into pages. These scripts will execute when a user accesses the injected page.

Recommendations Update the Html Social share buttons plugin to version 2.1.17 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-9849

Affected Products

Html Social Share Buttons

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2025-9849 · Security Note
• https://osv.dev/vulnerability/CVE-2025-9849 · Vendor Advisory
• https://github.com/alimuzzaman/html-social-share-buttons/blob/a614c9ce5731417edcf01747eacd814c754cc2d4/html-social-share.php#L307 · Note
• https://twitter.com/VulmonFeeds/status/1964250122440646820 · Twitter Post
• https://plugins.trac.wordpress.org/browser/html-social-share-buttons/trunk/html-social-share.php#L304 · Note
• https://twitter.com/CVEnew/status/1964195403899031590 · Twitter Post
• https://t.me/cveNotify/134530 · Telegram Post
• https://t.me/CVEtracker/31841 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/d11217ec-55a6-4422-9995-4cc1761d430e?source=cve · Note
• 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 · Note