PT-2020-13661 · Open Source Matters · Joomla!

Bui Duc Anh Khoa · Published 2020-06-02 · Updated 2025-04-03 · CVE-2020-13760

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Joomla! versions prior to 3.9.19

Description The issue is related to missing token checks in the com postinstall component, which leads to Cross-Site Request Forgery (CSRF). CSRF is an attack where an attacker tricks a user into performing unintended actions on a web application that the user is authenticated to.

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 restricting access to the com postinstall component to minimize the risk of exploitation.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

BIT-JOOMLA-2020-13760

CVE-2020-13760

Affected Products

Joomla!

References · 5

• https://developer.joomla.org/security-centre/817-20200605-core-csrf-in-com-postinstall · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-13760 · Security Note
• https://osv.dev/vulnerability/BIT-joomla-2020-13760 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-13760 · Vendor Advisory
• https://t.me/cvenotify/4128 · Telegram Post