CVE-2021-34220
Cross-site scripting in tr069config.htm in TOTOLINK A3002R version V1.1.1-B20200824 (Important...
Cross-site scripting in tr069config.htm in TOTOLINK A3002R version V1.1.1-B20200824 (Important Update, new UI) allows attackers to execute arbitrary JavaScript by modifying the "User Name" field or "Password" field.
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 in tr069config.htm in TOTOLINK A3002R version V1.1.1-B20200824 (Important Update, new UI) allows attackers to execute arbitrary JavaScript by modifying the "User Name" field or "Password" field.
- Record
CVE-2021-34220- 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 in tr069config.htm in TOTOLINK A3002R version V1.1.1-B20200824 (Important Update, new UI) allows attackers to execute arbitrary JavaScript by modifying the "User Name" field or "Password" field.
- Record
CVE-2021-34220- Updated
- 2026-11-02
EUVDEUVD-2021-20882 No score
Cross-site scripting in tr069config.htm in TOTOLINK A3002R version V1.1.1-B20200824 (Important Update, new UI) allows attackers to execute arbitrary JavaScript by modifying the "User Name" field or "Password" field.
- Record
EUVD-2021-20882- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qpjc-9f2w-grp8 No score
Cross-site scripting in tr069config.htm in TOTOLINK A3002R version V1.1.1-B20200824 (Important...
Cross-site scripting in tr069config.htm in TOTOLINK A3002R version V1.1.1-B20200824 (Important Update, new UI) allows attackers to execute arbitrary JavaScript by modifying the "User Name" field or "Password" field.
- Record
GHSA-qpjc-9f2w-grp8- 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-2021-34220 is a medium vulnerability (CVSS 6.1) in Totolink A3002r Firmware, published August 20, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.66%, the 52nd percentile. No source names a fixed version.