Description

WordPress Plugin HAL 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 HAL version 2.1.1 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 2.2 or latest

References

https://github.com/BigTiger2020/word-press/blob/main/HAL.md

https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39345

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

Related Vulnerabilities

MyBB Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2015-8975)

WordPress Plugin All In One Schema.org Rich Snippets Cross-Site Scripting (1.4.4)

WordPress Plugin Brute Force Login Protection Cross-Site Scripting (1.5.2)

WordPress Plugin Picturesurf Gallery 'upload.php' Arbitrary File Upload (1.2)

WordPress Plugin Dean's FCKEditor with pwwang's code Arbitrary File Upload (1.0.0)

Severity

High

Classification

CVE-2021-39345 CWE-79 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS