CVE-2026-108568 (GCVE-0-2026-108568)

Vulnerability from cvelistv5 – Published: 2026-10-11 09:45 – Updated: 2026-10-11 09:45
VLAI
Title
InstantSoft icms2 Billing paypal.php validatePaypalOrder data authenticity
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.
Severity
5.3 (Medium)
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
4.3 (Medium)
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
4.3 (Medium)
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
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3822 records in the last 180 days details
References
URL Tags
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
https://vuldb.com/submit/954261 third-party-advisory
Impacted products
Vendor Product Version CPE status
InstantSoft icms2 Affected: 2.18.0
Affected: 2.18.1
Affected: 2.18.2
    cpe:2.3:a:instantsoft:icms2:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
EVIL0RD (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:instantsoft:icms2:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Billing Module"
          ],
          "product": "icms2",
          "vendor": "InstantSoft",
          "versions": [
            {
              "status": "affected",
              "version": "2.18.0"
            },
            {
              "status": "affected",
              "version": "2.18.1"
            },
            {
              "status": "affected",
              "version": "2.18.2"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "EVIL0RD (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
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            "baseSeverity": "MEDIUM",
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            "version": "4.0"
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            "version": "2.0"
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      "problemTypes": [
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          "descriptions": [
            {
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              "description": "Insufficient Verification of Data Authenticity",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-11T09:45:15.682Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-416225 | InstantSoft icms2 Billing paypal.php validatePaypalOrder data authenticity",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/416225"
        },
        {
          "name": "VDB-416225 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/416225/cti"
        },
        {
          "name": "CVE-2026-108568 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-108568"
        },
        {
          "name": "Submit #954261 | InstantCMS InstantCMS icms2 2.18.2 Insufficient Verification of Data Authenticity",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/954261"
        }
      ],
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          "time": "2026-10-10T00:00:00.000Z",
          "value": "Advisory disclosed"
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          "time": "2026-10-10T02:00:00.000Z",
          "value": "VulDB entry created"
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          "lang": "en",
          "time": "2026-10-10T17:09:37.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "InstantSoft icms2 Billing paypal.php validatePaypalOrder data authenticity",
      "x_generator": [
        "VulDB PVTS v202610"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-108568",
    "datePublished": "2026-10-11T09:45:15.682Z",
    "dateReserved": "2026-10-10T15:04:23.213Z",
    "dateUpdated": "2026-10-11T09:45:15.682Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-10-12",
      "epss": "0.00133",
      "percentile": "0.02466"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "cpes": [
                  "cpe:2.3:a:instantsoft:icms2:*:*:*:*:*:*:*:*"
                ],
                "modules": [
                  "Billing Module"
                ],
                "product": "icms2",
                "vendor": "InstantSoft",
                "versions": [
                  {
                    "status": "affected",
                    "version": "2.18.0"
                  },
                  {
                    "status": "affected",
                    "version": "2.18.1"
                  },
                  {
                    "status": "affected",
                    "version": "2.18.2"
                  }
                ]
              }
            ],
            "source": "cna@vuldb.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "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."
          }
        ],
        "id": "CVE-2026-108568",
        "lastModified": "2026-10-11T10:16:40.340",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "SINGLE",
                "availabilityImpact": "NONE",
                "baseScore": 4.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
                "version": "2.0"
              },
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              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "cna@vuldb.com",
              "type": "Secondary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
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                "confidentialityImpact": "NONE",
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              "impactScore": 1.4,
              "source": "cna@vuldb.com",
              "type": "Primary"
            }
          ],
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 2.1,
                "baseSeverity": "LOW",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "PROOF_OF_CONCEPT",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "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",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "LOW",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "cna@vuldb.com",
              "type": "Secondary"
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            "url": "https://vuldb.com/cve/CVE-2026-108568"
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            "source": "cna@vuldb.com",
            "url": "https://vuldb.com/submit/954261"
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        "vulnStatus": "Received",
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                "value": "CWE-345"
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            "source": "cna@vuldb.com",
            "type": "Primary"
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        ]
      }
    }
  }
}



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