Description

WordPress Plugin Coming soon and Maintenance mode 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 Coming soon and Maintenance mode version 3.5.2 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 3.5.3 or latest

References

https://sploitus.com/exploit?id=WPEX-ID:D453B547-41A8-4A6B-8349-8686B7054805

https://plugins.svn.wordpress.org/coming-soon-page/trunk/readme.txt

Related Vulnerabilities

PHP Out-of-bounds Read Vulnerability (CVE-2019-9023)

Ember.js Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2015-7565)

WordPress 3.9.x PHP Object Injection (3.9 - 3.9.33)

WordPress Plugin Paid Memberships Pro-Restrict Member Access to Content, Courses, Communities-Free or Paid Subscriptions Open Redirect (2.0.5)

ownCloud Other Vulnerability (CVE-2012-5057)

Severity

High

Classification

CVE-2021-24577 CWE-79 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS