PT-2021-17771 · Unknown · Concrete Cms

Deek87 · Published 2021-03-18 · Updated 2022-05-24 · CVE-2021-28145

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Concrete CMS (formerly concrete5) versions prior to 8.5.5

Description: The issue allows remote authenticated users to conduct Cross-site Scripting (XSS) attacks via a crafted survey block, requiring at least Editor privileges.

Recommendations: For versions prior to 8.5.5, update to version 8.5.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the survey block feature for users with Editor privileges until the update is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-28145

GHSA-7388-7VQ2-M4F4

Affected Products

Concrete Cms

References · 8

• 🔥 https://github.com/S1lkys/CVE-2021-40101 · Exploit
• https://concrete5.org/developers/security · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-7388-7vq2-m4f4 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-28145 · Vendor Advisory
• https://documentation.concrete5.org/developers/introduction/version-history/855-release-notes · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-28145 · Security Note
• https://t.me/cibsecurity/25122 · Telegram Post
• https://t.me/cvenotify/22801 · Telegram Post