SB20250908104 - Stored cross-site scripting in Html Social share buttons plugin for WordPress
Published: September 8, 2025
Security Bulletin ID
SB20250908104
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Stored cross-site scripting (CVE-ID: CVE-2025-9849)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the "zm_sh_btn" shortcode. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install update from vendor's website.
References
- https://github.com/alimuzzaman/html-social-share-buttons/blob/a614c9ce5731417edcf01747eacd814c754cc2d4/html-social-share.php#L307
- https://plugins.trac.wordpress.org/browser/html-social-share-buttons/trunk/html-social-share.php#L304
- 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
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d11217ec-55a6-4422-9995-4cc1761d430e?source=cve