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CVE-2024-43035

22
FAUCET Score

CVE-2024-43035 is a directory traversal vulnerability affecting Fonoster versions 0.5.5 through 0.6.0. It allows an unauthenticated attacker to read arbitrary files on the server by manipulating the /sounds/:file or /tts/:file VoiceServer endpoints. The vulnerability has a CVSS score of 5.8 (Medium), indicating a network-based attack with low complexity and potential for partial confidentiality impact. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
FonosterFonoster
>= 0.5.5, < 0.6.1CNA affecteddefault unknown

CVSS Data

CVSS version used by this source: 3.1

5.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.36%
Probability of exploitation in next 30 days
EPSS Percentile
82.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0236 is in the 73rd percentile among its peer group of 23,725 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

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: @fonoster/voiceFixed in: 0.6.1

Vendor Advisories (1)

npmGHSA-9fv2-c7v6-p45wmedium

Fonoster is vulnerable to directory traversal

Mar 5, 2026

References

github.com / fonoster/fonoster/blob/4a1438d9dedeaf7b2a5b6a50d5e233f994e2b2cf/mods/voice/src/utils.ts
zeropath.com / blog/fonoster-voiceserver-lfi-vulnerability