PT-2018-14736 · Baser · Basercms

Sunu11 · Published 2018-11-05 · Updated 2022-05-13 · CVE-2018-18942

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions baserCMS versions prior to 4.1.4

Description The issue allows remote attackers to execute arbitrary PHP code. This is achieved via the admin/theme configs/form data, specifically through the ThemeConfig][logo parameter in the libBaserModelThemeConfig.php file.

Recommendations For versions prior to 4.1.4, update to version 4.1.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the libBaserModelThemeConfig.php file or disabling the logo parameter in the admin/theme configs/form data until a patch is applied.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2018-18942

GHSA-RJC2-X53R-6C9R

Affected Products

Basercms

References · 8

• 🔥 http://sunu11.com/2018/10/31/baserCMS · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-18942 · Security Note
• https://basercms.net/release/4_1_4 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-rjc2-x53r-6c9r · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-18942 · Vendor Advisory
• https://github.com/baserproject/basercms/issues/959 · Note
• https://web.archive.org/web/20200130073341/https://basercms.net/release/4_1_4 · Note
• https://web.archive.org/web/20211209034642/http://sunu11.com/2018/10/31/baserCMS · Note