Vulnerability Description
Open redirect vulnerability in GroupSession (GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0) allows a remote attacker to redirect a user to an arbitrary web site and conduct a phishing attack via a specially crafted URL.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Groupsession | Groupsession | >= 2.20, < 5.1.0 |
| Groupsession | Groupsession Bycloud | >= 3.0.3, < 5.1.0 |
| Groupsession | Groupsession Zion | >= 3.0.3, < 5.1.0 |
Related Weaknesses (CWE)
References
- https://groupsession.jp/info/info-news/security202107Vendor Advisory
- https://jvn.jp/en/jp/JVN86026700/index.htmlThird Party Advisory
- https://groupsession.jp/info/info-news/security202107Vendor Advisory
- https://jvn.jp/en/jp/JVN86026700/index.htmlThird Party Advisory
FAQ
What is CVE-2021-20789?
CVE-2021-20789 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Open redirect vulnerability in GroupSession (GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSes...
How severe is CVE-2021-20789?
CVE-2021-20789 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-20789?
Check the references section above for vendor advisories and patch information. Affected products include: Groupsession Groupsession, Groupsession Groupsession Bycloud, Groupsession Groupsession Zion.