CVE-2021-20807
Cross-site scripting vulnerability in the management screen of Cybozu Remote Service 3.0.0 to 3.1...
Cross-site scripting vulnerability in the management screen of Cybozu Remote Service 3.0.0 to 3.1.9 allows a remote attacker to inject an arbitrary script via unspecified vectors.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Cross-site scripting vulnerability in the management screen of Cybozu Remote Service 3.0.0 to 3.1.9 allows a remote attacker to inject an arbitrary script via unspecified vectors.
- Record
CVE-2021-20807- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Cross-site scripting vulnerability in the management screen of Cybozu Remote Service 3.0.0 to 3.1.9 allows a remote attacker to inject an arbitrary script via unspecified vectors.
- Record
CVE-2021-20807- Updated
- 2026-11-02
EUVDEUVD-2021-8219 No score
Cross-site scripting vulnerability in the management screen of Cybozu Remote Service 3.0.0 to 3.1.9 allows a remote attacker to inject an arbitrary script via unspecified vectors.
- Record
EUVD-2021-8219- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wqrp-hv5x-fxr2 No score
Cross-site scripting vulnerability in the management screen of Cybozu Remote Service 3.0.0 to 3.1...
Cross-site scripting vulnerability in the management screen of Cybozu Remote Service 3.0.0 to 3.1.9 allows a remote attacker to inject an arbitrary script via unspecified vectors.
- Record
GHSA-wqrp-hv5x-fxr2- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-20807 is a medium vulnerability (CVSS 6.1) in Cybozu, Inc. Cybozu Remote Service, published October 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.75%, the 55th percentile. No source names a fixed version.