Open Redirect Vulnerability in Busy Application by BusyOrg
CVE-2026-2709

5.1MEDIUM

Key Information:

Vendor

BusyOrg

Status
Busy
Vendor
CVE Published:
19 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2709?

A vulnerability exists in the Busy application up to version 2.5.5, specifically in the Callback Handler component within the source code file app.js. This flaw allows an attacker to manipulate the state argument, leading to an open redirect. This issue can be exploited remotely, posing a significant security risk. Although the BusyOrg team was alerted about the issue through an issue report, they have not yet provided a resolution, making it imperative for users to take immediate action to mitigate potential attacks.

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Affected Version(s)

busy 2.5.0

busy 2.5.1

busy 2.5.2

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-2026-2709 - Proof of Concept

References

https://vuldb.com/?id.346661
vdb-entrytechnical-description
https://vuldb.com/?ctiid.346661
signaturepermissions-required
https://vuldb.com/?submit.753299
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ZAST.AI (VulDB User)
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