| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.7 | $0-$5k | 0.00 |
Summary
A vulnerability categorized as problematic has been discovered in Netgear D7800, DM200, R6100, R7500, R7500v2, R7800, R8900, R9000, WNDR4300, WNDR4300v2, WNDR4500v3 and WNR2000v5. This issue affects some unknown processing. Such manipulation leads to cross site scripting (Stored). This vulnerability is referenced as CVE-2018-21155. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.
Details
A vulnerability was found in Netgear D7800, DM200, R6100, R7500, R7500v2, R7800, R8900, R9000, WNDR4300, WNDR4300v2, WNDR4500v3 and WNR2000v5 (Router Operating System) and classified as problematic. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability (Stored). Using CWE to declare the problem leads to CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. Impacted is integrity. CVE summarizes:
Certain NETGEAR devices are affected by stored XSS. This affects D7800 before 1.0.1.34, DM200 before 1.0.0.52, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.42, R8900 before 1.0.4.2, R9000 before 1.0.3.16, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64.
The weakness was published 04/27/2020 (Website). The advisory is shared for download at kb.netgear.com. This vulnerability is handled as CVE-2018-21155 since 04/20/2020. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.
Upgrading eliminates this vulnerability.
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Product
Type
Vendor
Name
License
Website
- Vendor: https://www.netgear.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.8VulDB Meta Temp Score: 5.7
VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.3
NVD Vector: 🔍
CNA Base Score: 6.3
CNA Vector (MITRE): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: StoredClass: Cross site scripting / Stored
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
04/20/2020 🔍04/27/2020 🔍
04/28/2020 🔍
05/06/2025 🔍
Sources
Vendor: netgear.comAdvisory: kb.netgear.com
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-21155 (🔍)
GCVE (CVE): GCVE-0-2018-21155
GCVE (VulDB): GCVE-100-154400
Entry
Created: 04/28/2020 09:47Updated: 05/06/2025 11:49
Changes: 04/28/2020 09:47 (37), 04/28/2020 09:52 (12), 10/13/2020 07:12 (1), 10/13/2020 07:23 (1), 06/03/2024 08:55 (33), 05/06/2025 11:49 (6)
Complete: 🔍
Cache ID: 216::103
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