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CVE-2023-40580

20
FAUCET Score

CVE-2023-40580 describes an access control vulnerability in the Freighter Stellar Chrome extension, affecting versions prior to 5.3.1. A malicious website could potentially access a user's recovery mnemonic phrase if the Freighter wallet is unlocked. Rated Medium severity (CVSS 6.5), this vulnerability requires user interaction (UI:R) and network access (AV:N) but has low attack complexity (AC:L), leading to high confidentiality impact (C:H). 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
< 5.3.1CPE matchmatch criteria
cpe:2.3:a:stellar:freighter:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 46th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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 (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / stellar/freighter/commit/81f78ba008c41ce631a3d0f9e4449f4bbd90baee
Patch
github.com / stellar/freighter/pull/948
Patch
github.com / stellar/freighter/security/advisories/GHSA-vqr6-hwg2-775w
PatchThird Party Advisory