CVE-2026-56396 (GCVE-0-2026-56396)

Vulnerability from cvelistv5 – Published: 2026-06-21 13:27 – Updated: 2026-06-21 13:27
VLAI
Title
phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights()
Summary
phpMyFAQ before 4.1.4 contains missing authorization vulnerabilities in editUser() and updateUserRights() endpoints that allow authenticated administrators to escalate privileges. Non-SuperAdmin users with edit_user permission can set is_superadmin flag or grant arbitrary rights to escalate to SuperAdmin access.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
phpMyFAQ phpMyFAQ Affected: 0 , < 4.1.4 (semver)
Unaffected: 4.1.4 (semver)
Create a notification for this product.
Date Public
2026-05-25 00:00
Credits
SnailSploit 0xShemesh
Show details on NVD website
To clipboard 

{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "phpMyFAQ",
          "vendor": "phpMyFAQ",
          "versions": [
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              "version": "0",
              "versionType": "semver"
            },
            {
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              "version": "4.1.4",
              "versionType": "semver"
            }
          ]
        }
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          "type": "reporter",
          "value": "SnailSploit"
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          "type": "finder",
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      "datePublic": "2026-05-25T00:00:00.000Z",
      "descriptions": [
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        }
      ],
      "metrics": [
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            "attackRequirements": "NONE",
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            "baseScore": 8.7,
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            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "Missing Authorization",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-06-21T13:27:03.833Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
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      "references": [
        {
          "name": "GHSA Advisory GHSA-985r-q3qp-299h",
          "tags": [
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          ],
          "url": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-985r-q3qp-299h"
        },
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          "tags": [
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          "url": "https://www.vulncheck.com/advisories/phpmyfaq-privilege-escalation-via-missing-authorization-in-edituser-and-updateuserrights"
        }
      ],
      "title": "phpMyFAQ - Privilege Escalation via Missing Authorization in editUser() and updateUserRights()",
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  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-56396",
    "datePublished": "2026-06-21T13:27:03.833Z",
    "dateReserved": "2026-06-21T12:37:58.434Z",
    "dateUpdated": "2026-06-21T13:27:03.833Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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