FKIE_CVE-2026-43934

Vulnerability from fkie_nvd - Published: 2026-05-26 16:16 - Updated: 2026-07-24 11:10
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
e107 is a content management system (CMS). Prior to 2.3.4, a Broken Access Control vulnerability exists in the application, allowing an unauthorized authenticated user to edit comments posted by others. This stems from inadequate server-side access control validation, where the application depends only on a predictable identifier in the request to determine which comment to edit, without confirming the requesting user’s ownership of the comment. This vulnerability is fixed in 2.3.4.
References
security-advisories@github.comhttps://github.com/e107inc/e107/commit/23961a8f
security-advisories@github.comhttps://github.com/e107inc/e107/security/advisories/GHSA-5w63-63rh-99q6
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/e107inc/e107/security/advisories/GHSA-5w63-63rh-99q6
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "e107",
          "vendor": "e107inc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.3.4"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "e107 is a content management system (CMS). Prior to 2.3.4, a Broken Access Control vulnerability exists in the application, allowing an unauthorized authenticated user to edit comments posted by others. This stems from inadequate server-side access control validation, where the application depends only on a predictable identifier in the request to determine which comment to edit, without confirming the requesting user\u2019s ownership of the comment. This vulnerability is fixed in 2.3.4."
    },
    {
      "lang": "es",
      "value": "e107 es un sistema de gesti\u00f3n de contenido (CMS). Antes de la versi\u00f3n 2.3.4, existe una vulnerabilidad de Control de Acceso Roto en la aplicaci\u00f3n, permitiendo a un usuario autenticado no autorizado editar comentarios publicados por otros. Esto se deriva de una validaci\u00f3n de control de acceso inadecuada del lado del servidor, donde la aplicaci\u00f3n depende solo de un identificador predecible en la solicitud para determinar qu\u00e9 comentario editar, sin confirmar la propiedad del comentario por parte del usuario solicitante. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 2.3.4."
    }
  ],
  "id": "CVE-2026-43934",
  "lastModified": "2026-07-24T11:10:00.170",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-43934",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-26T17:40:26.682147Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-26T16:16:25.253",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/e107inc/e107/commit/23961a8f"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/e107inc/e107/security/advisories/GHSA-5w63-63rh-99q6"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/e107inc/e107/security/advisories/GHSA-5w63-63rh-99q6"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        },
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.