Vulnerability-Lookup

GHSA-7MP3-WCQF-GF22

Vulnerability from github – Published: 2026-08-25 09:30 – Updated: 2026-08-25 09:30

Details

The frontend topic editing flow does not verify on the server side that the requesting visitor owns the topic being modified. As a result, a visitor who knows the identifier of a topic from the public forum can submit a modified update request for that topic directly and overwrite its content, without the application confirming ownership. Topic identifiers are visible in the public forum listing, and exploitation requires no privileged access or non-default configuration.

Severity

8.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-77143"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-25T09:17:35Z",
    "severity": "HIGH"
  },
  "details": "The frontend topic editing flow does not verify on the server side that the requesting visitor owns the topic being modified. As a result, a visitor who knows the identifier of a topic from the public forum can submit a modified update request for that topic directly and overwrite its content, without the application confirming ownership. Topic identifiers are visible in the public forum listing, and exploitation requires no privileged access or non-default configuration.",
  "id": "GHSA-7mp3-wcqf-gf22",
  "modified": "2026-08-25T09:30:40Z",
  "published": "2026-08-25T09:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77143"
    },
    {
      "type": "WEB",
      "url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-021"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/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-2026-77143 (GCVE-0-2026-77143)

Vulnerability from cvelistv5 – Published: 2026-08-25 09:00 – Updated: 2026-08-26 06:02

Title

Broken Access Control in extension "Forum" (pforum)

Summary

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-25 14:03 UTC

CWE

CWE-862 - Missing Authorization
CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

TYPO3 CNA under the mitre root

CNA scorecard B 84/100 over 53 records in the last 180 days details

References

1 reference

URL	Tags
https://typo3.org/security/advisory/typo3-ext-sa-…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
TYPO3	Extension "Forum"	Affected: 6.0.0 , < 6.2.4 (semver) Affected: 5.0.0 , < 5.0.1 (semver) Affected: 0 , < 4.0.4 (semver)

Date Public

2026-08-25 09:00

Credits

Seungbin Yang Hoja Mustaffa Abdul Latheef

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-77143",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-25T14:03:12.156296Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-25T14:03:20.944Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://packagist.org/",
          "defaultStatus": "unaffected",
          "packageName": "jweiland/pforum",
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          "versions": [
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              "status": "affected",
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              "status": "affected",
              "version": "5.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "4.0.4",
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          "value": "Seungbin Yang"
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          "lang": "en",
          "type": "remediation developer",
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        }
      ],
      "datePublic": "2026-08-25T09:00:00.000Z",
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        }
      ],
      "metrics": [
        {
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            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "userInteraction": "NONE",
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            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "description": "CWE-639 Authorization Bypass Through User-Controlled Key",
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-26T06:02:18.425Z",
        "orgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
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      "references": [
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          "tags": [
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          ],
          "url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-021"
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      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Broken Access Control in extension \"Forum\" (pforum)",
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    "datePublished": "2026-08-25T09:00:34.130Z",
    "dateReserved": "2026-08-20T13:10:15.962Z",
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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

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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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