Description

WordPress Plugin Popup by Supsystic 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 Popup by Supsystic version 1.10.4 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 1.10.5 or latest

References

https://sploitus.com/exploit?id=WPEX-ID:EFDC76E0-C14A-4BAF-AF70-9D381107308F

https://www.exploit-db.com/exploits/50346

https://plugins.trac.wordpress.org/changeset/2507215/

Related Vulnerabilities

Magento Server-Side Request Forgery (SSRF) Vulnerability (CVE-2019-7923)

WordPress Plugin Multi Rating Multiple Unspecified Vulnerabilities (3.2.1)

WordPress Plugin jQuery Reply to Comment Cross-Site Request Forgery (1.31)

YUI Library Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2010-4208)

WordPress Weak Password Recovery Mechanism for Forgotten Password Vulnerability (CVE-2020-11027)

Severity

High

Classification

CVE-2021-24275 CWE-79 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS