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

WordPress Plugin Contentboxes Cross-Site Scripting (1.1)

XWiki Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2023-35150)

WordPress Cookies Security Bypass Weakness (1.5 - 2.3.1)

WordPress Plugin Service Finder-Provider and Business Listing Local File Disclosure (3.0)

WordPress 5.9.x Multiple Vulnerabilities (5.9 - 5.9.7)

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