CVE-2026-108568 json
InstantSoft icms2 Billing paypal.php validatePaypalOrder data authenticity
published 29d ago modified 27d ago also EUVD-2026-96871
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 2%
- public exploits
- 0
- none known
Summary
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.
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Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 27d ago
Exploit prediction
0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P |
| CNA | 3.1 | 4.3 | 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 |
| CNA | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C |
| CNA | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:C |
| CNA | 4.0 | 2.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| CNA | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
Affected products
- InstantSoft icms2
Classification
- Weakness
-
- CWE-345 Insufficient Verification of Data Authenticity
References
-
vuldb.com
/vuln/416225
vdb-entry, technical-description
-
vuldb.com
/vuln/416225/cti
signature, permissions-required
-
vuldb.com
/cve/CVE-2026-108568
third-party-advisory
-
vuldb.com
/submit/954261
third-party-advisory
Sources
- CVE List CVE-2026-108568
- NVD CVE-2026-108568
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.