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CVE-2023-7079

18
FAUCET Score

CVE-2023-7079 is a medium-severity vulnerability affecting Cloudflare Wrangler's dev server. It allows an attacker to access any file on a user's computer over the local network by sending specially crafted HTTP requests and inspector messages. The attack requires user interaction, as the victim must be tricked into opening a malicious website. While the CVSS score is 5.7, indicating a moderate risk, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, < 3.19.0CPE match
cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*
>= 0, <= 3.9.0CPE match
cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*
>= 3.9.0, < 3.19.0CPE matchmatch criteria
cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 90th percentile among its peer group of 126 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: wranglerFixed in: 3.19.0

Vendor Advisories (1)

npmGHSA-cfph-4qqh-w828medium

Arbitrary remote file read in Wrangler dev server

Jan 3, 2024

References

github.com / cloudflare/workers-sdk/pull/4532
Patch
github.com / cloudflare/workers-sdk/pull/4535
Patch
github.com / cloudflare/workers-sdk/security/advisories/GHSA-cfph-4qqh-w828
PatchThird Party Advisory