CVE-2021-20797
Cross-site script inclusion vulnerability in the management screen of Cybozu Remote Service 3.1.8...
Cross-site script inclusion vulnerability in the management screen of Cybozu Remote Service 3.1.8 allows a remote authenticated attacker to obtain the information stored in the product. This issue occurs only when using Mozilla Firefox.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- 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 script inclusion vulnerability in the management screen of Cybozu Remote Service 3.1.8 allows a remote authenticated attacker to obtain the information stored in the product. This issue occurs only when using Mozilla Firefox.
- Record
CVE-2021-20797- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Cross-site script inclusion vulnerability in the management screen of Cybozu Remote Service 3.1.8 allows a remote authenticated attacker to obtain the information stored in the product. This issue occurs only when using Mozilla Firefox.
- Record
CVE-2021-20797- Updated
- 2026-11-02
EUVDEUVD-2021-8209 No score
Cross-site script inclusion vulnerability in the management screen of Cybozu Remote Service 3.1.8 allows a remote authenticated attacker to obtain the information stored in the product. This issue occurs only when using Mozilla Firefox.
- Record
EUVD-2021-8209- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f8wh-r68g-w93m No score
Cross-site script inclusion vulnerability in the management screen of Cybozu Remote Service 3.1.8...
Cross-site script inclusion vulnerability in the management screen of Cybozu Remote Service 3.1.8 allows a remote authenticated attacker to obtain the information stored in the product. This issue occurs only when using Mozilla Firefox.
- Record
GHSA-f8wh-r68g-w93m- 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-2021-20797 is a medium vulnerability (CVSS 5.4) 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 0.61%, the 49th percentile. No source names a fixed version.