PT-2021-22994 · Cloudron · Cloudron

Published 2021-09-21 · Updated 2021-10-02 · CVE-2021-40868

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Cloudron version 6.2

Description The issue concerns a Reflected XSS vulnerability related to the returnTo parameter on the login page. This allows for potential malicious script injection, which can be executed when a user is redirected to the page with the malicious returnTo parameter value.

Recommendations For Cloudron version 6.2, as a temporary workaround, consider restricting access to the login page or validating and sanitizing the returnTo parameter to prevent malicious input. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-40868

Affected Products

Cloudron

References · 7

• 🔥 https://exploit-db.com/exploits/50317 · Exploit
• 🔥 http://packetstormsecurity.com/files/164255/Cloudron-6.2-Cross-Site-Scripting.html · Exploit
• 🔥 https://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html · Exploit
• https://osv.dev/vulnerability/CVE-2021-40868 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40868 · Security Note
• https://cloudron.io · Note
• https://t.me/cibsecurity/29192 · Telegram Post