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

WordPress Plugin Publish to Schedule Cross-Site Scripting (4.5.4)

WordPress Plugin Easy Testimonials Cross-Site Scripting (1.36.1)

WordPress Plugin Inline Gallery 'do' Parameter Cross-Site Scripting (0.3.9)

PHP Integer Overflow or Wraparound Vulnerability (CVE-2018-14883)

Nginx Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') Vulnerability (CVE-2012-2089)

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