Insufficient Data Verification in InstantSoft icms2 Billing Module
CVE-2026-108568

5.3MEDIUM

Key Information:

Vendor

Instantsoft

Status
Icms2
Vendor
CVE Published:
11 October 2026

What is CVE-2026-108568?

A vulnerability found in InstantSoft icms2 versions up to 2.18.2 affects the validatePaypalOrder function within the Billing Module. This flaw allows attackers to manipulate the bid/sig argument, resulting in inadequate verification of data authenticity. The exploit can be executed remotely, and there has been public disclosure of the vulnerability, yet the vendor has not responded to notifications regarding the issue.

Affected Version(s)

icms2 2.18.0

icms2 2.18.1

icms2 2.18.2

References

https://vuldb.com/vuln/416225
vdb-entrytechnical-description
https://vuldb.com/vuln/416225/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-108568
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

EVIL0RD (VulDB User)
VulDB CNA Team
.