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Vulnerability Details :

CVE-2026-14620

Summary
Assigner-openjs
Assigner Org ID-ce714d77-add3-4f53-aff5-83d477b104bb
Published At-03 Jul, 2026 | 17:00
Updated At-03 Jul, 2026 | 17:00
Rejected At-
Credits

webpack-dev-server vulnerable to cross-site request forgery via internal developer endpoints

webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perform state-changing actions on any GET request without verifying that the request originated from the dev server's own page. Any website a developer visits while the dev server is running can trigger these endpoints cross-origin with no interaction beyond the visit. An attacker can open an arbitrary existing local file in the developer's editor, including files outside the project root, and repeated requests can spawn editor processes and force recompilations that degrade the developer's machine. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: none.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:openjs
Assigner Org ID:ce714d77-add3-4f53-aff5-83d477b104bb
Published At:03 Jul, 2026 | 17:00
Updated At:03 Jul, 2026 | 17:00
Rejected At:
▼CVE Numbering Authority (CNA)
webpack-dev-server vulnerable to cross-site request forgery via internal developer endpoints

webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perform state-changing actions on any GET request without verifying that the request originated from the dev server's own page. Any website a developer visits while the dev server is running can trigger these endpoints cross-origin with no interaction beyond the visit. An attacker can open an arbitrary existing local file in the developer's editor, including files outside the project root, and repeated requests can spawn editor processes and force recompilations that degrade the developer's machine. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: none.

Affected Products
Vendor
webpack-dev-server
Product
webpack-dev-server
Default Status
unaffected
Versions
Affected
  • From 0 before 5.2.6 (semver)
Unaffected
  • 5.2.6 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-352CWE-352: Cross-Site Request Forgery (CSRF)
CWECWE-749CWE-749: Exposed Dangerous Method or Function
Type: CWE
CWE ID: CWE-352
Description: CWE-352: Cross-Site Request Forgery (CSRF)
Type: CWE
CWE ID: CWE-749
Description: CWE-749: Exposed Dangerous Method or Function
Metrics
VersionBase scoreBase severityVector
3.14.7MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L
Version: 3.1
Base score: 4.7
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

reporter
Pig-Tail
coordinator
bjohansebas
analyst
UlisesGascon
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-f5vj-f2hx-8m93
N/A
https://cna.openjsf.org/security-advisories.html
N/A
Hyperlink: https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-f5vj-f2hx-8m93
Resource: N/A
Hyperlink: https://cna.openjsf.org/security-advisories.html
Resource: N/A
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:ce714d77-add3-4f53-aff5-83d477b104bb
Published At:03 Jul, 2026 | 17:16
Updated At:03 Jul, 2026 | 17:16

webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perform state-changing actions on any GET request without verifying that the request originated from the dev server's own page. Any website a developer visits while the dev server is running can trigger these endpoints cross-origin with no interaction beyond the visit. An attacker can open an arbitrary existing local file in the developer's editor, including files outside the project root, and repeated requests can spawn editor processes and force recompilations that degrade the developer's machine. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: none.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.14.7MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L
Type: Secondary
Version: 3.1
Base score: 4.7
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-352Secondaryce714d77-add3-4f53-aff5-83d477b104bb
CWE-749Secondaryce714d77-add3-4f53-aff5-83d477b104bb
CWE ID: CWE-352
Type: Secondary
Source: ce714d77-add3-4f53-aff5-83d477b104bb
CWE ID: CWE-749
Type: Secondary
Source: ce714d77-add3-4f53-aff5-83d477b104bb
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://cna.openjsf.org/security-advisories.htmlce714d77-add3-4f53-aff5-83d477b104bb
N/A
https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-f5vj-f2hx-8m93ce714d77-add3-4f53-aff5-83d477b104bb
N/A
Hyperlink: https://cna.openjsf.org/security-advisories.html
Source: ce714d77-add3-4f53-aff5-83d477b104bb
Resource: N/A
Hyperlink: https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-f5vj-f2hx-8m93
Source: ce714d77-add3-4f53-aff5-83d477b104bb
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

2Records found

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Matching Score-6
Assigner-ce714d77-add3-4f53-aff5-83d477b104bb
ShareView Details
Matching Score-6
Assigner-ce714d77-add3-4f53-aff5-83d477b104bb
CVSS Score-5.3||MEDIUM
EPSS-0.22% / 11.99%
||
7 Day CHG~0.00%
Published-12 May, 2026 | 07:45
Updated-18 May, 2026 | 15:23
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
webpack-dev-server vulnerable to cross-origin source code exposure on non-HTTPS origins

webpack-dev-server versions up to and including 5.2.3 are vulnerable to cross-origin source code exposure when serving over a non-potentially trustworthy origin such as plain HTTP. The previous fix relied on the Sec-Fetch-Mode and Sec-Fetch-Site request headers, which browsers omit for non-trustworthy origins, allowing a malicious site to load the bundled source as a script and read it across origins. Impact: an attacker controlling a website visited by a developer running webpack-dev-server can recover the application source code when the dev server runs over HTTP at a guessable host and port. Chromium based browsers from Chrome 142 onward are not affected due to local network access restrictions. Upgrade to webpack-dev-server 5.2.4 or later, which sets Cross-Origin-Resource-Policy: same-origin on responses.

Action-Not Available
Vendor-webpack-dev-serverWebpack (OpenJS Foundation)
Product-webpack-dev-serverwebpack-dev-server
CWE ID-CWE-749
Exposed Dangerous Method or Function
CVE-2026-49043
Matching Score-4
Assigner-Patchstack
ShareView Details
Matching Score-4
Assigner-Patchstack
CVSS Score-4.7||MEDIUM
EPSS-0.12% / 1.88%
||
7 Day CHG~0.00%
Published-15 Jun, 2026 | 20:19
Updated-16 Jun, 2026 | 01:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
WordPress WP Migrate Lite plugin <= 2.7.8 - Cross Site Request Forgery (CSRF) vulnerability

Unauthenticated Cross Site Request Forgery (CSRF) in WP Migrate Lite <= 2.7.8 versions.

Action-Not Available
Vendor-WP Engine
Product-WP Migrate Lite
CWE ID-CWE-352
Cross-Site Request Forgery (CSRF)
Details not found