CVE-2017-2166
CVE-2017-2166 is a medium-severity vulnerability in Groupsession with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-601
- Affected product: Groupsession
- Published:
- Last modified:
Description
Open redirect vulnerability in GroupSession version 4.7.0 and earlier allows an attacker to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.
Frequently asked questions
- What is CVE-2017-2166?
- Open redirect vulnerability in GroupSession version 4.7.0 and earlier allows an attacker to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.
- How severe is CVE-2017-2166?
- CVE-2017-2166 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2017-2166 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-2166?
- CVE-2017-2166 affects Groupsession. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-2166?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2017-2166 published?
- CVE-2017-2166 was published on 2018-01-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:groupsession:groupsession:*:*:*:*:*:*:*:*
More vulnerabilities in Groupsession
- CVE-2021-20874 — High (CVSS 7.5): Incorrect permission assignment for critical resource vulnerability in GroupSession Free edition ver5.1.1 and earlier,…
- CVE-2021-20876 — Medium (CVSS 6.8): Path traversal vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and…
- CVE-2017-2165 — Medium (CVSS 6.5): GroupSession versions 4.6.4 and earlier allows remote authenticated attackers to bypass access restrictions to obtain…
- CVE-2025-65120 — Medium (CVSS 6.1): Reflected cross-site scripting vulnerability exists in GroupSession Free edition prior to ver5.7.1, GroupSession…
- CVE-2025-57883 — Medium (CVSS 6.1): Reflected cross-site scripting vulnerability exists in GroupSession Free edition prior to ver5.3.0, GroupSession…
- CVE-2025-54407 — Medium (CVSS 6.1): Stored cross-site scripting vulnerability exists in GroupSession Free edition prior to ver5.3.0, GroupSession byCloud…
All CVEs affecting Groupsession →
Other CWE-601 (Open Redirect) vulnerabilities
- CVE-2018-3774 — Critical (CVSS 10.0): Incorrect parsing in url-parse <1.4.3 returns wrong hostname which leads to multiple vulnerabilities such as SSRF, Open…
- CVE-2019-25282 — Critical (CVSS 9.8): V-SOL GPON/EPON OLT Platform v2.03 contains an open redirect vulnerability in the script that allows attackers to…
- CVE-2020-36912 — Critical (CVSS 9.8): Plexus anblick Digital Signage Management 3.1.13 contains an open redirect vulnerability in the 'PantallaLogin' script…
- CVE-2025-43526 — Critical (CVSS 9.8): This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. On a Mac…
- CVE-2025-55031 — Critical (CVSS 9.8): Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An…
- CVE-2024-22891 — Critical (CVSS 9.8): Nteract v.0.28.0 was discovered to contain a remote code execution (RCE) vulnerability via the Markdown link.