Description

WordPress Plugin Updater 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 Updater by BestWebSoft version 1.34 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 1.35 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

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

https://plugins.svn.wordpress.org/updater/trunk/readme.txt

Related Vulnerabilities

Apache HTTP Server CVE-2009-1191 Vulnerability (CVE-2009-1191)

PHP Improper Input Validation Vulnerability (CVE-2008-7068)

WordPress Plugin Theme Demo Import Arbitrary File Upload (1.1.0)

MySQL CVE-2015-0391 Vulnerability (CVE-2015-0391)

WordPress Plugin Slideshow Multiple Cross-Site Scripting Vulnerabilities (2.1.14)

Severity

High

Classification

CVE-2017-2171 CVE-2017-2171 CVE-2017-18565 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