High severity7.2NVD Advisory· Published Mar 10, 2021· Updated Jun 17, 2026

CVE-2021-20671

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Weseek/Growi2 versions
cpe:2.3:a:weseek:growi:4.2.2:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:weseek:growi:4.2.2:*:*:*:*:*:*:*
- (no CPE)range: versions v4.2.2 and earlier
GROWI/GROWIllm-fuzzy
Range: <4.2.2

Patches

Vulnerability mechanics

References

jvn.jp/en/vu/JVNVU94889258/index.htmlnvdThird Party Advisory
weseek.co.jp/security/2021/03/08/vulnerability/growi-prevent-multiple-xss/nvdVendor Advisory

News mentions

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