react-dev-utils up to 5.0.3 on Windows Webserver Network Request cross-site request forgery
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.8 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic has been found in react-dev-utils up to 1.0.3/2.0.1/3.1.1/4.2.1/5.0.3 on Windows. This affects an unknown part of the component Webserver. The manipulation as part of Network Request leads to cross-site request forgery. This vulnerability is listed as CVE-2018-6342. The attack must be carried out locally. There is no available exploit. It is recommended to upgrade the affected component.
Details
A vulnerability, which was classified as problematic, has been found in react-dev-utils up to 1.0.3/2.0.1/3.1.1/4.2.1/5.0.3 on Windows (JavaScript Library). This issue affects some unknown processing of the component Webserver. The manipulation as part of a Network Request leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity. The summary by CVE is:
react-dev-utils on Windows allows developers to run a local webserver for accepting various commands, including a command to launch an editor. The input to that command was not properly sanitized, allowing an attacker who can make a network request to the server (either via CSRF or by direct request) to execute arbitrary commands on the targeted system. This issue affects multiple branches: 1.x.x prior to 1.0.4, 2.x.x prior to 2.0.2, 3.x.x prior to 3.1.2, 4.x.x prior to 4.2.2, and 5.x.x prior to 5.0.2.
The bug was discovered 08/22/2018. The weakness was presented 12/31/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-6342 since 01/26/2018. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.
The vulnerability was handled as a non-public zero-day exploit for at least 131 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91519 (React-Dev-Utils Remote Code Execution Vulnerability).
Upgrading to version 1.0.4, 2.0.2, 3.1.2, 4.2.2 or 5.0.2 eliminates this vulnerability.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Type
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.9VulDB Meta Temp Score: 6.8
VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Cross-site request forgeryCWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
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 |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: react-dev-utils 1.0.4/2.0.2/3.1.2/4.2.2/5.0.2
Patch: github.com
Timeline
01/26/2018 🔍08/22/2018 🔍
12/31/2018 🔍
12/31/2018 🔍
01/01/2019 🔍
05/06/2025 🔍
Sources
Advisory: github.comStatus: Confirmed
CVE: CVE-2018-6342 (🔍)
GCVE (CVE): GCVE-0-2018-6342
GCVE (VulDB): GCVE-100-128603
Entry
Created: 01/01/2019 12:02Updated: 05/06/2025 22:34
Changes: 01/01/2019 12:02 (62), 04/25/2020 16:31 (1), 06/22/2023 15:36 (5), 05/06/2025 22:34 (23)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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