CVE-2021-20875 is an open redirect vulnerability affecting GroupSession Free, byCloud, and ZION editions up to version 5.1.1. This flaw allows an unauthenticated attacker to redirect users to arbitrary websites through a specially crafted URL, facilitating phishing attacks. Rated Medium severity (CVSS 6.1), it requires user interaction (UI:R) but has low attack complexity (AC:L) and can lead to limited confidentiality and integrity impacts (C:L/I:L). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 5.1.1CPE matchmatch criteria | cpe:2.3:a:groupsession:groupsession:*:*:*:*:cloud:*:*:* | ||
<= 5.1.1CPE matchmatch criteria | cpe:2.3:a:groupsession:groupsession:*:*:*:*:free:*:*:* | ||
<= 5.1.1CPE matchmatch criteria | cpe:2.3:a:groupsession:groupsession:*:*:*:*:zion:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.