CVE-2021-20671

moderate-risk
Published 2021-03-10

Invalid file validation on the upload feature in GROWI versions v4.2.2 allows a remote attacker with administrative privilege to overwrite the files on the server, which may lead to arbitrary code execution.

Do I need to act?

~
2.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.2/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Weseek

References (4)

Third Party Advisory https://jvn.jp/en/vu/JVNVU94889258/index.html
Vendor Advisory https://weseek.co.jp/security/2021/03/08/vulnerability/growi-prevent-multiple-xs...
Third Party Advisory https://jvn.jp/en/vu/JVNVU94889258/index.html
Vendor Advisory https://weseek.co.jp/security/2021/03/08/vulnerability/growi-prevent-multiple-xs...
36
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 5/34 · Minimal
Exposure 5/34 · Minimal