PT-2020-13662 · Open Source Matters · Joomla!

Bui Duc Anh Khoa · CVE-2020-13761 · Published 2020-06-02 · Updated 2025-04-03

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 3.9.19

Description The issue is related to a lack of input validation in the heading tag option of the "Articles - Newsflash" and "Articles - Categories" modules, which allows for cross-site scripting (XSS).

Recommendations For versions prior to 3.9.19, update to version 3.9.19 or later to resolve the issue. As a temporary workaround, consider disabling the "Articles - Newsflash" and "Articles - Categories" modules until a patch is available. Restrict access to these modules to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-JOOMLA-2020-13761

CVE-2020-13761

Affected Products

Joomla!

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2020-13761 · Security Note
• https://developer.joomla.org/security-centre/813-20200601-core-xss-in-modules-heading-tag-option · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-13761 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-joomla-2020-13761 · Vendor Advisory
• https://t.me/cvenotify/4129 · Telegram Post