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    4 vulnerabilities found for WHMCS by WebPros

    CVE-2026-67398 (GCVE-0-2026-67398)

    Vulnerability from nvd – Published: 2026-09-03 23:57 – Updated: 2026-09-04 19:48
    VLAI
    Summary
    Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.8, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoint under specific conditions.
    Severity
    8.2 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-04 19:47 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    WebPros WHMCS Affected: 4.5.0 , ≤ 8.12.2 (semver)
    Affected: 8.13.0 , < 8.13.8 (semver)
    Affected: 9.0.0 , < 9.0.8 (semver)
    		Create a notification for this product.
    Credits
    "boomerang"
    Show details on NVD website
    To clipboard 

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      ],
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    CVE-2026-29204 (GCVE-0-2026-29204)

    Vulnerability from nvd – Published: 2026-05-12 17:46 – Updated: 2026-05-12 21:57
    VLAI
    Summary
    Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's account.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-12 21:10 UTC
    CWE
    • CWE-639 - Insecure Direct Object Reference (IDOR)
    Assigner
    References
    Impacted products
    Vendor Product Version
    WebPros WHMCS Affected: 7.4.0 , ≤ 18.12.2 (semver)
    Affected: 18.13.0 , < 18.13.3 (semver)
    Affected: 9.0.0 , < 9.0.4 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-67398 (GCVE-0-2026-67398)

    Vulnerability from cvelistv5 – Published: 2026-09-03 23:57 – Updated: 2026-09-04 19:48
    VLAI
    Summary
    Missing authorization vulnerability has been discovered in 2Checkout payment gateway of WHMCS from 8.13.0 before 8.13.8, from 9.0.0 before 9.0.8, all other EOL versions from 4.5.0. The vulnerability allows an unauthenticated user to get WHMCS customer's data via 2Checkout payment gateway's endpoint under specific conditions.
    Severity
    8.2 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-04 19:47 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    WebPros WHMCS Affected: 4.5.0 , ≤ 8.12.2 (semver)
    Affected: 8.13.0 , < 8.13.8 (semver)
    Affected: 9.0.0 , < 9.0.8 (semver)
    		Create a notification for this product.
    Credits
    "boomerang"
    Show details on NVD website
    To clipboard 

    {
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    CVE-2026-29204 (GCVE-0-2026-29204)

    Vulnerability from cvelistv5 – Published: 2026-05-12 17:46 – Updated: 2026-05-12 21:57
    VLAI
    Summary
    Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's account.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-12 21:10 UTC
    CWE
    • CWE-639 - Insecure Direct Object Reference (IDOR)
    Assigner
    References
    Impacted products
    Vendor Product Version
    WebPros WHMCS Affected: 7.4.0 , ≤ 18.12.2 (semver)
    Affected: 18.13.0 , < 18.13.3 (semver)
    Affected: 9.0.0 , < 9.0.4 (semver)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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