PT-2018-13270 · Monstra · Monstra Cms

Xiaohuihui1113 · Published 2018-09-10 · Updated 2018-11-14 · CVE-2018-15886

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 Monstra CMS version 3.0.4

Description The issue concerns the improper restriction of modified Snippet content. This is demonstrated through the "admin/index.php?id=snippets&action=edit snippet&filename=google-analytics" URI, which allows attackers to execute arbitrary PHP code by placing it after a <?php substring.

Recommendations For Monstra CMS version 3.0.4, as a temporary workaround, consider restricting access to the edit snippet action in the admin/index.php file until a proper fix is available. Additionally, avoid using the filename parameter in the affected URI to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2018-15886

Affected Products

Monstra Cms

References · 3

• 🔥 https://github.com/monstra-cms/monstra/issues/455 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-15886 · Security Note
• https://osv.dev/vulnerability/CVE-2018-15886 · Vendor Advisory