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CVE-2023-5654

20
FAUCET Score

CVE-2023-5654 describes an arbitrary URL fetching vulnerability in the React Developer Tools extension, affecting facebook react-devtools. The flaw allows any webpage to trigger the extension to fetch unvalidated URLs, potentially leading to information disclosure or other impacts. Rated Medium severity (CVSS 6.5), it has a network attack vector and low attack complexity, with potential for limited integrity and availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.28.4CPE matchmatch criteria
cpe:2.3:a:facebook:react-devtools:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
37.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 24th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: react-devtools-coreFixed in: 4.28.4

Vendor Advisories (1)

npmGHSA-rxrc-rgv4-jpvxmedium

React Developer Tools extension Improper Authorization vulnerability

Oct 19, 2023

References

gist.github.com / CalumHutton/1fb89b64409570a43f89d1fd3274b231
PatchThird Party Advisory