PT-2021-21286 · Monstra · Monstra

R0Ck3T1973 · Published 2021-10-28 · Updated 2021-11-02 · CVE-2021-36548

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Monstra version 3.0.4

Description A remote code execution issue in the /admin/index.php?id=themes&action=edit template&filename=blog component allows attackers to execute arbitrary commands via a crafted PHP file.

Recommendations For Monstra version 3.0.4, consider disabling access to the /admin/index.php?id=themes&action=edit template&filename=blog endpoint until a patch is available. Restrict the ability to upload or execute PHP files 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

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2021-36548

Affected Products

Monstra

References · 4

• 🔥 https://github.com/monstra-cms/monstra/issues/470 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-36548 · Security Note
• https://osv.dev/vulnerability/CVE-2021-36548 · Vendor Advisory
• https://t.me/cibsecurity/31437 · Telegram Post