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CVE-2023-7079

MEDIUM
Published 2023-12-29T11:54:08.925Z
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CVSS Score

V3.1
6.4
/10
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.197
Higher than 19.7% of all CVEs

Attack Vector Metrics

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
LOW
Availability
NONE

Description

Sending specially crafted HTTP requests and inspector messages to Wrangler's dev server could result in any file on the user's computer being accessible over the local network. An attacker that could trick any user on the local network into opening a malicious website could also read any file.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Cloudflare

wrangler

Affected Versions:

0 0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed MODERATE

Arbitrary remote file read in Wrangler dev server

GHSA-cfph-4qqh-w828

Advisory Details

### Impact Sending specially crafted HTTP requests and inspector messages to Wrangler's dev server could result in any file on the user's computer being accessible over the local network. An attacker that could trick any user on the local network into opening a malicious website could also read any file. ### Patches This issue was fixed in `[email protected]`. Wrangler will now only serve files that are part of your bundle, or referenced by your bundle's source maps. ### Workarounds Configure Wrangler to listen on local interfaces instead with `wrangler dev --ip 127.0.0.1`. This is the [default as of `[email protected]`](https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-f8mp-x433-5wpf), and removes the local network as an attack vector, but does not prevent an attack from visiting a malicious website. ### References - https://github.com/cloudflare/workers-sdk/pull/4532 - https://github.com/cloudflare/workers-sdk/pull/4535

Affected Packages

npm wrangler
ECOSYSTEM: ≥3.9.0 <3.19.0

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

References

WEB https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-cfph-4qqh-w828
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-7079
WEB https://github.com/cloudflare/workers-sdk/pull/4532
WEB https://github.com/cloudflare/workers-sdk/pull/4535
WEB https://github.com/cloudflare/workers-sdk/commit/29df8e17545bf3926b6d61678b596be809d40c6d
WEB https://github.com/cloudflare/workers-sdk/commit/311ffbd5064f8301ac6f0311bbe5630897923b93
PACKAGE https://github.com/cloudflare/workers-sdk

Advisory provided by GitHub Security Advisory Database. Published: January 3, 2024, Modified: January 3, 2024

References

https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-cfph-4qqh-w828
https://github.com/cloudflare/workers-sdk/pull/4532
https://github.com/cloudflare/workers-sdk/pull/4535
Published: 2023-12-29T11:54:08.925Z
Last Modified: 2024-08-02T08:50:07.936Z
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