Description

An issue was discovered in Joomla! 3.0.0 through 3.9.26. HTML was missing in the executable block list of MediaHelper::canUpload, leading to XSS attack vectors.

Remediation

References

CVE-2021-26032

Related Vulnerabilities

ATutor Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2019-12170)

ownCloud Permissions, Privileges, and Access Controls Vulnerability (CVE-2013-2047)

WordPress 4.3.x Multiple Vulnerabilities (4.3 - 4.3.7)

Magento Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2021-21014)

WordPress Plugin VDZ CallBack Cross-Site Scripting (1.14.5)

Severity

Medium

Classification

CVE-2021-26032 CWE-707 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Tags

Missing Update Known Vulnerabilities