CVE PROGRAM SOURCE RECORDUnscored

CVE-2021-26032

[20210501] - Core - Adding HTML to the executable block list of MediaHelper::canUpload

Status: Published
Published: 2021-05-26
Updated: 2026-02-25
Assigning organization: Joomla

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Joomla! Project Joomla! CMS

3.0.0-3.9.26affected

References

https://developer.joomla.org/security-centre/852-20210501-core-adding-html-to-the-executable-block-list-of-mediahelper-canupload.html ↗