Description

WordPress Plugin Twitter Button by BestWebSoft is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Twitter Button by BestWebSoft version 2.54 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 2.55 or latest

References

http://www.defensecode.com/advisories/DC-2017-02-014_50_WordPress_plugins_by_BestWebSoft_Advisory.pdf

https://packetstormsecurity.com/files/142118/WordPress-BestWebSoft-XSS-CSRF.html

https://wordpress.org/plugins/twitter-plugin/#changelog

http://jvn.jp/en/jp/JVN24834813/index.html

Related Vulnerabilities

Family Connections Permissions, Privileges, and Access Controls Vulnerability (CVE-2007-4338)

WordPress Plugin O2Tweet Cross-Site Request Forgery (0.0.4)

MySQL CVE-2013-2395 Vulnerability (CVE-2013-2395)

WordPress Plugin WP User Switch Security Bypass (1.0.2)

WordPress Plugin Mang Board WP Unspecified Vulnerability (2.0.3)

Severity

High

Classification

CVE-2017-2171 CVE-2017-2171 CVE-2017-18505 CWE-79 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Tags

Missing Update XSS