Path Traversal in Groupsession
CVE-2021-20876
Path traversal vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier allows an attacker with an administrative privilege to obtain sensitive information stored in the hierarchy above the directory on the published site's server via unspecified vectors.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.010 (62.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Groupsession
- Japan Total System Co.,ltd. Groupsession Free Edition, Bycloud, Zion — versions GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier
Weakness classification (CWE)
References
- groupsession.jp/info/info-news/security20211220 (Vendor Advisory)
- jvn.jp/en/jp/JVN79798166/index.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20876?
- CVE-2021-20876 is a medium-severity vulnerability in Groupsession, classified under Path Traversal. CVSS score: 6.8/10. Published 2021-12-24.
- How severe is CVE-2021-20876?
- Medium severity. CVSS v3 base score is 6.8 out of 10.