Vulnerability-Lookup

GHSA-52XR-G583-RX96

Vulnerability from github – Published: 2026-10-11 15:31 – Updated: 2026-10-11 15:31

Details

phpMyFAQ through 4.1.10 contains a missing authorization vulnerability in the MCP server faq_search tool that allows MCP clients to read restricted FAQs because Search::searchDatabase() never applies user or group permission checks. Attackers connected to the phpmyfaq:mcp:server can issue search queries to retrieve the full question and answer text of active FAQs restricted to specific users or groups.

Severity

3.3 (Low)


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

4.8 (Medium)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-108851"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-11T14:17:04Z",
    "severity": "MODERATE"
  },
  "details": "phpMyFAQ through 4.1.10 contains a missing authorization vulnerability in the MCP server faq_search tool that allows MCP clients to read restricted FAQs because Search::searchDatabase() never applies user or group permission checks. Attackers connected to the phpmyfaq:mcp:server can issue search queries to retrieve the full question and answer text of active FAQs restricted to specific users or groups.",
  "id": "GHSA-52xr-g583-rx96",
  "modified": "2026-10-11T15:31:07Z",
  "published": "2026-10-11T15:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-108851"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thorsten/phpMyFAQ"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thorsten/phpMyFAQ/blob/4.1.10/phpmyfaq/src/phpMyFAQ/Search.php#L137-L194"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thorsten/phpMyFAQ/blob/4.1.10/phpmyfaq/src/phpMyFAQ/Service/McpServer/FaqSearchToolExecutor.php#L56-L102"
    },
    {
      "type": "WEB",
      "url": "https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/phpmyfaq-mcp-search-visibility"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/phpmyfaq-through-4.1.10-missing-authorization-via-mcp-server-faq-search-tool"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-108851 (GCVE-0-2026-108851)

Vulnerability from cvelistv5 – Published: 2026-10-11 13:26 – Updated: 2026-10-13 13:39

Title

phpMyFAQ through 4.1.10 Missing Authorization via MCP Server faq_search Tool

Summary

Severity

4.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

3.3 (Low)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-13 13:38 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5953 records in the last 180 days details

References

5 references

URL	Tags
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/phpmyfa…	third-party-advisory
https://github.com/thorsten/phpMyFAQ/blob/4.1.10/…	technical-description
https://github.com/thorsten/phpMyFAQ/blob/4.1.10/…	technical-description
https://github.com/thorsten/phpMyFAQ	product
https://www.vulncheck.com/advisories/phpmyfaq-thr…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
thorsten	phpMyFAQ	Affected: 4.1.0 , ≤ 4.1.10 (semver) cpe:2.3:a:phpmyfaq:phpmyfaq::::::::

Date Public

2026-10-11 00:00

Credits

hieuPenguinnn

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-108851",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-13T13:38:33.346482Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-13T13:39:25.428Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/phpmyfaq-mcp-search-visibility"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:composer/thorsten/phpmyfaq",
          "product": "phpMyFAQ",
          "repo": "https://github.com/thorsten/phpMyFAQ",
          "vendor": "thorsten",
          "versions": [
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              "lessThanOrEqual": "4.1.10",
              "status": "affected",
              "version": "4.1.0",
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            }
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        }
      ],
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          "nodes": [
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              "cpeMatch": [
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                }
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      "credits": [
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          "type": "finder",
          "value": "hieuPenguinnn"
        }
      ],
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      "descriptions": [
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          "lang": "en",
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        }
      ],
      "metrics": [
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            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "vulnIntegrityImpact": "NONE"
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      "references": [
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          "tags": [
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          "url": "https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/phpmyfaq-mcp-search-visibility"
        },
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          "tags": [
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          "url": "https://github.com/thorsten/phpMyFAQ/blob/4.1.10/phpmyfaq/src/phpMyFAQ/Search.php#L137-L194"
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          "url": "https://github.com/thorsten/phpMyFAQ/blob/4.1.10/phpmyfaq/src/phpMyFAQ/Service/McpServer/FaqSearchToolExecutor.php#L56-L102"
        },
        {
          "tags": [
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          "url": "https://github.com/thorsten/phpMyFAQ"
        },
        {
          "name": "VulnCheck Advisory: phpMyFAQ through 4.1.10 Missing Authorization via MCP Server faq_search Tool",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/phpmyfaq-through-4.1.10-missing-authorization-via-mcp-server-faq-search-tool"
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    "assignerShortName": "VulnCheck",
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    "datePublished": "2026-10-11T13:26:01.436Z",
    "dateReserved": "2026-10-11T12:57:34.538Z",
    "dateUpdated": "2026-10-13T13:39:25.428Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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