PT-2021-10531 · Unknown · Monstra Cms

Yaoyao6688 · Published 2021-09-27 · Updated 2021-10-08 · CVE-2020-20691

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Monstra CMS version 3.0.4

Description: An issue in Monstra CMS allows attackers to execute arbitrary web scripts or HTML via bypassing the file extension filter and uploading crafted HTML files.

Recommendations: For Monstra CMS version 3.0.4, update to a version that fixes the file extension filter bypass issue to prevent arbitrary web script or HTML execution. 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-2020-20691

Affected Products

Monstra Cms

References · 6

• 🔥 https://github.com/monstra-cms/monstra/issues/461 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-20691 · Security Note
• https://osv.dev/vulnerability/CVE-2020-20691 · Vendor Advisory
• https://t.me/cvenotify/22156 · Telegram Post
• https://t.me/cvenotify/21544 · Telegram Post
• https://t.me/cibsecurity/29536 · Telegram Post