CVE-2026-108568

MEDIUM 4.3

InstantSoft icms2 Billing paypal.php validatePaypalOrder data authenticity

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was determined in InstantSoft icms2 up to 2.18.2. The affected element is the function validatePaypalOrder of the file system/controllers/billing/actions/paypal.php of the component Billing Module. Executing a manipulation of the argument bid/sig can lead to insufficient verification of data authenticity. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CWE	CWE-345
Vendor	instantsoft
Product	icms2
Published	Oct 11, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

InstantSoft / icms2

2.18.0 2.18.1 2.18.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/416225 vuldb.com: https://vuldb.com/vuln/416225/cti vuldb.com: https://vuldb.com/cve/CVE-2026-108568 vuldb.com: https://vuldb.com/submit/954261

Credits

🔍 EVIL0RD (VulDB User) VulDB CNA Team