PT-2020-11998 · Open Source Matters · Joomla!

Pham Van Khanh · Published 2020-03-16 · Updated 2025-04-03 · CVE-2020-10242

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Joomla! versions prior to 3.9.16

Description The issue is related to inadequate handling of CSS selectors in the Protostar and Beez3 JavaScript, which allows XSS attacks.

Recommendations For versions prior to 3.9.16, update to version 3.9.16 or later to resolve the issue.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-JOOMLA-2020-10242

CVE-2020-10242

Affected Products

Joomla!

References · 5

• https://developer.joomla.org/security-centre/803-20200302-core-xss-in-protostar-and-beez3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-10242 · Security Note
• https://osv.dev/vulnerability/BIT-joomla-2020-10242 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-10242 · Vendor Advisory
• https://t.me/cvenotify/1756 · Telegram Post