CVE-2020-29021
Scripting tag chars < > not filtered in input fields could cause Cross-Site Scripting (XSS)
A vulnerability in web UI input field of GateManager allows authenticated attacker to enter script tags that could cause XSS. This issue affects: GateManager all versions prior to 9.3.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Scripting tag chars < > not filtered in input fields could cause Cross-Site Scripting (XSS)
A vulnerability in web UI input field of GateManager allows authenticated attacker to enter script tags that could cause XSS. This issue affects: GateManager all versions prior to 9.3.
- Record
CVE-2020-29021- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2020-21403
A vulnerability in web UI input field of GateManager allows authenticated attacker to enter script tags that could cause XSS. This issue affects: GateManager all versions prior to 9.3.
- Record
EUVD-2020-21403- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fjq4-gjv6-rcj2 No score
A vulnerability in web UI input field of GateManager allows authenticated attacker to enter...
A vulnerability in web UI input field of GateManager allows authenticated attacker to enter script tags that could cause XSS. This issue affects: GateManager all versions prior to 9.3.
- Record
GHSA-fjq4-gjv6-rcj2- Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
A vulnerability in web UI input field of GateManager allows authenticated attacker to enter script tags that could cause XSS. This issue affects: GateManager all versions prior to 9.3.
- Record
CVE-2020-29021- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N - CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/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-20, CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-29021 is a low vulnerability (CVSS 3.5) in Secomea Gatemanager, published February 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.65%, the 51st percentile. No source names a fixed version.