CVE-2024-7819Public exploitNetwork attack vector

Session data disclosure via permissive Origin validation

Published Mar 20, 2025 · Updated Mar 20, 2025

CORS origin validation error in Onyx 1.4.1 allows remote attackers to read chat contents, API keys, and other API data. The API's CORS policy improperly validates the Origin header and authorizes requests from malicious web pages. A victim must visit attacker-controlled content while the browser can reach the deployment and holds an active session; exposure is limited to data available through that session.

CVSS severity7.4
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CORS origin validation error in Onyx 1.4.1 allows remote attackers to read chat contents, API keys, and other API data. The API's CORS policy improperly validates the Origin header and authorizes requests from malicious web pages. A victim must visit attacker-controlled content while the browser can reach the deployment and holds an active session; exposure is limited to data available through that session.

The record

CVE
CVE-2024-7819
Published
Mar 20, 2025
Updated
Mar 20, 2025
Vendor
Onyx
Product
Onyx
Classifications
CWE-346
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=latest

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Onyx · Onyxversion=unspecified <=latest

Published CVSS scores

7.4huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-346Origin Validation Error

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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