SQL Injection Vulnerability in Fengoffice Legacy API
CVE-2026-90495

6.9MEDIUM

Key Information:

Vendor

Fengoffice

Status
Feng Office
Vendor
CVE Published:
13 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90495?

A SQL injection vulnerability exists in Fengoffice's Legacy API within the method Contacts::instance->findAll, located in the file application/models/CompanyWebsite.class.php. This weakness arises from improper argument handling during authentication processes, allowing attackers to manipulate the input parameters. The vulnerability can be exploited remotely, exposing systems to potential unauthorized database access and manipulation. Despite prior notification to the vendor, no response has been recorded regarding remediation. Immediate action is advised for affected users to protect their systems.

Affected Version(s)

Feng Office 3.11.13.0

Feng Office 3.11.13.1

Feng Office 3.11.13.2

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-2026-90495 - Proof of Concept

References

https://vuldb.com/vuln/403083
vdb-entrytechnical-description
https://vuldb.com/vuln/403083/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90495
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
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

ciphersecuritylabs (VulDB User)
VulDB CNA Team
.