Information Disclosure Vulnerability in EchoHS GeekezBrowser
CVE-2026-120503

4.8MEDIUM

Key Information:

Vendor

Echohs

Status
Geekezbrowser
Vendor
CVE Published:
2 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-120503?

A vulnerability was identified in EchoHS GeekezBrowser versions up to 1.7.2 and 1.8.0, affecting the Public API component's /api/status file. This flaw could enable attackers to disclose sensitive information through local exploitation methods. To address this issue, users are strongly advised to upgrade to version 1.8.1, which includes a critical patch identified as 9317a89aa0fd2715d9c2bd27bdbb52b5d228dd9e.

Affected Version(s)

GeekezBrowser 1.0

GeekezBrowser 1.1

GeekezBrowser 1.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-120503 - Proof of Concept

References

https://vuldb.com/vuln/429883
vdb-entry
https://vuldb.com/vuln/429883/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-120503
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

wilson888 (VulDB User)
.