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Fencer Vulns
high 8.0

CVE-2021-20758 json

Cross-site request forgery (CSRF) vulnerability in Message of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to hijack…

published 2021-08-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8170

cvss
8.0
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits
0
none known

Summary

Cross-site request forgery (CSRF) vulnerability in Message of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to hijack the authentication of administrators and perform an arbitrary operation via unspecified vectors.

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

  • Cybozu, Inc. Cybozu Garoon

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.