CVE-2021-30203
A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02...
A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02.1_SC_UTF8 allows attackers to execute arbitrary web scripts or HTML.
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
A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02.1_SC_UTF8 allows attackers to execute arbitrary web scripts or HTML.
- Record
CVE-2021-30203- 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 - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02.1_SC_UTF8 allows attackers to execute arbitrary web scripts or HTML.
- Record
CVE-2021-30203- Updated
- 2026-11-02
EUVDEUVD-2021-17135 No score
A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02.1_SC_UTF8 allows attackers to execute arbitrary web scripts or HTML.
- Record
EUVD-2021-17135- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4wgc-vg4p-9q74
A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02...
A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02.1_SC_UTF8 allows attackers to execute arbitrary web scripts or HTML.
- Record
GHSA-4wgc-vg4p-9q74- 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 - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
A reflected cross-site scripting (XSS) vulnerability in the zero parameter of dzzoffice 2.02.1_SC_UTF8 allows attackers to execute arbitrary web scripts or HTML.
- Record
CVE-2021-30203- 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 - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | Dzzoffice 2.02.1 - Cross-Site Scripting |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-30203 is a medium vulnerability (CVSS 6.1) in Dzzoffice, published June 27, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 48th percentile. No source names a fixed version.