Medium severity · published Dec 29, 2023
CVE-2023-7079
Arbitrary remote file read in Wrangler dev server
5.7
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WR
wrangler · Cloudflare
through 3.9.0; before 3.19.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-7079
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-7079
Patch
https://github.com/cloudflare/workers-sdk/pull/4532
Patch
https://github.com/cloudflare/workers-sdk/pull/4535
Patch
https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-cfph-4qqh-w828
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