XSS in Weseek Growi
CVE-2021-20672
Reflected cross-site scripting vulnerability due to insufficient verification of URL query parameters in GROWI (v4.2 Series) versions from v4.2.0 to v4.2.7 allows remote attackers to inject an arbitrary script via unspecified vectors.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.009 (59.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Weseek Growi
- Weseek, Inc. Growi (V4.2 Series) — versions versions from v4.2.0 to v4.2.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- weseek.co.jp/security/2021/03/09/vulnerability/growi-prevent-xss5/ (Vendor Advisory)
- jvn.jp/en/jp/JVN86438134/index.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20672?
- CVE-2021-20672 is a medium-severity vulnerability in Weseek Growi, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-03-10.
- How severe is CVE-2021-20672?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-20672 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.