PT-2021-19148 · Concrete5 · Concrete5

Published 2021-01-08 · Updated 2021-07-22 · CVE-2021-3111

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Concrete5 version 8.5.4

Description The issue allows stored XSS via the name field of a new data object at the "index.php/dashboard/express/entries/view/" URI. This occurs in the Express Entries Dashboard.

Recommendations For Concrete5 version 8.5.4, update to a version that fixes this issue to prevent stored XSS attacks. As a temporary workaround, consider restricting access to the "index.php/dashboard/express/entries/view/" URI or disabling the ability to create new data objects in the Express Entries Dashboard until a patch is available. Avoid using the name field in the affected URI until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-3111

Affected Products

Concrete5

References · 11

• 🔥 https://github.com/Quadron-Research-Lab/CVE/blob/main/CVE-2021-3111.pdf · Exploit
• 🔥 https://exploit-db.com/exploits/49721 · Exploit
• 🔥 http://packetstormsecurity.com/files/161600/Concrete5-8.5.4-Cross-Site-Scripting.html · Exploit
• https://osv.dev/vulnerability/CVE-2021-3111 · Vendor Advisory
• https://documentation.concrete5.org/developers/introduction/version-history · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3111 · Security Note
• https://documentation.concrete5.org/developers/introduction/version-history/855-release-notes · Vendor Advisory
• https://t.me/cvenotify/17701 · Telegram Post
• https://t.me/cibsecurity/21825 · Telegram Post
• https://t.me/cvenotify/9012 · Telegram Post
• http://packetstormsecurity.com/files/161997/Concrete5-8.5.4-Cross-Site-Scripting.html · Note