Vulnerability-Lookup

CVE-2026-24421 (GCVE-0-2026-24421)

Vulnerability from cvelistv5 – Published: 2026-01-24 01:43 – Updated: 2026-01-26 16:17

Title

phpMyFAQ missing authorization exposes /api/setup/backup to any authenticated user

Summary

phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below have flawed authorization logic which exposes the /api/setup/backup endpoint to any authenticated user despite their permissions. SetupController.php uses userIsAuthenticated() but does not verify that the requester has configuration/admin permissions. Non-admin users can trigger a configuration backup and retrieve its path. The endpoint only checks authentication, not authorization, and returns a link to the generated ZIP. This issue is fixed in version 4.0.17.

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-862 - Missing Authorization

Assigner

GitHub_M

References

URL

Tags

https://github.com/thorsten/phpMyFAQ/security/adv…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	thorsten	phpMyFAQ	Affected: < 4.0.17

Show details on NVD website

JSON

To clipboard

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      ],
      "metrics": [
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          "cvssV3_1": {
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        "discovery": "UNKNOWN"
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      "title": "phpMyFAQ missing authorization exposes /api/setup/backup to any authenticated user"
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    "dateReserved": "2026-01-22T18:19:49.175Z",
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GHSA-WM8H-26FV-MG7G

Vulnerability from github – Published: 2026-01-23 20:17 – Updated: 2026-01-28 04:43

Summary

phpMyFAQ: /api/setup/backup accessible to any authenticated user (authz missing)

Details

Summary

Authenticated non‑admin users can call /api/setup/backup and trigger a configuration backup. The endpoint only checks authentication, not authorization, and returns a link to the generated ZIP.

Details

SetupController.php uses userIsAuthenticated() but does not verify that the requester has configuration/admin permissions. This allows any logged‑in user to create a sensitive backup and retrieve its path.

PoC

Precondition: API enabled, any authenticated non‑admin user. - Log in as a non‑admin user. - Call backup endpoint.

curl -c /tmp/pmf_api_cookies.txt \
  -H 'Content-Type: application/json' \
  -d '{"username":"tester","password":"Test1234!"}' \
  http://192.168.40.16/phpmyfaq/api/v3.0/login

curl -i -b /tmp/pmf_api_cookies.txt \
  -X POST --data '4.0.16' \
  http://192.168.40.16/phpmyfaq/api/setup/backup

Impact

Low‑privileged users can generate sensitive backups. If the ZIP is web‑accessible (server misconfiguration), this can lead to secret exposure.

Severity ?

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.0.16"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "phpmyfaq/phpmyfaq"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.17"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.0.16"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "thorsten/phpmyfaq"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.17"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-24421"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-285",
      "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-23T20:17:25Z",
    "nvd_published_at": "2026-01-24T02:15:49Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nAuthenticated non\u2011admin users can call /api/setup/backup and trigger a configuration backup. The endpoint only checks authentication, not authorization, and returns a link to the generated ZIP.\n\n### Details\nSetupController.php uses userIsAuthenticated() but does not verify that the requester has configuration/admin permissions. This allows any logged\u2011in user to create a sensitive backup and retrieve its path.\n\n### PoC\nPrecondition: API enabled, any authenticated non\u2011admin user.\n- Log in as a non\u2011admin user.\n- Call backup endpoint.\n```\ncurl -c /tmp/pmf_api_cookies.txt \\\n  -H \u0027Content-Type: application/json\u0027 \\\n  -d \u0027{\"username\":\"tester\",\"password\":\"Test1234!\"}\u0027 \\\n  http://192.168.40.16/phpmyfaq/api/v3.0/login\n\ncurl -i -b /tmp/pmf_api_cookies.txt \\\n  -X POST --data \u00274.0.16\u0027 \\\n  http://192.168.40.16/phpmyfaq/api/setup/backup\n```\n\n### Impact\nLow\u2011privileged users can generate sensitive backups. If the ZIP is web\u2011accessible (server misconfiguration), this can lead to secret exposure.",
  "id": "GHSA-wm8h-26fv-mg7g",
  "modified": "2026-01-28T04:43:46Z",
  "published": "2026-01-23T20:17:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-wm8h-26fv-mg7g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24421"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/thorsten/phpMyFAQ"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "phpMyFAQ: /api/setup/backup accessible to any authenticated user (authz missing)"
}

FKIE_CVE-2026-24421

Vulnerability from fkie_nvd - Published: 2026-01-24 02:15 - Updated: 2026-01-26 15:03

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-wm8h-26fv-mg7g

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below have flawed authorization logic which exposes the /api/setup/backup endpoint to any authenticated user despite their permissions. SetupController.php uses userIsAuthenticated() but does not verify that the requester has configuration/admin permissions. Non-admin users can trigger a configuration backup and retrieve its path. The endpoint only checks authentication, not authorization, and returns a link to the generated ZIP. This issue is fixed in version 4.0.17."
    }
  ],
  "id": "CVE-2026-24421",
  "lastModified": "2026-01-26T15:03:33.357",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-24T02:15:49.507",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-wm8h-26fv-mg7g"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-24421 (GCVE-0-2026-24421)

GHSA-WM8H-26FV-MG7G

Summary

Details

PoC

Impact

FKIE_CVE-2026-24421

Tags

Sightings

Nomenclature