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CVE-2021-39174

30
FAUCET Score

CVE-2021-39174 is a high-severity vulnerability affecting Cachet, an open-source status page system, prior to version 2.5.1. It allows any authenticated user, regardless of their privileges, to leak sensitive configuration entries from the .env file, including the application secret (APP_KEY) and various passwords. This vulnerability has a CVSS score of 8.8 (HIGH) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or significant community discussion, the high FAUCET Risk Score of 97/100 indicates its potential for severe impact if exploited.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.5.1CPE matchmatch criteria
cpe:2.3:a:catchethq:catchet:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.89%
Probability of exploitation in next 30 days
EPSS Percentile
89.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0389 is in the 88th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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)

composerpatch availablevia ghsa
Product: cachethq/cachetFixed in: 2.5.1

Vendor Advisories (1)

composerGHSA-88f9-7xxh-c688high

Cachet configuration leak

Aug 30, 2021

References

blog.sonarsource.com / cachet-code-execution-via-laravel-configuration-injection
ExploitThird Party Advisory
github.com / fiveai/Cachet/releases/tag/v2.5.1
Release NotesThird Party Advisory
github.com / fiveai/Cachet/security/advisories/GHSA-88f9-7xxh-c688
Third Party Advisory