FKIE_CVE-2025-32015

Vulnerability from fkie_nvd - Published: 2025-06-04 20:15 - Updated: 2025-08-12 15:31
Severity ?
6.7 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L
Summary
FreshRSS is a self-hosted RSS feed aggregator. Prior to version 1.26.2, HTML is sanitized improperly inside the `<iframe srcdoc>` attribute, which leads to cross-site scripting (XSS) by loading an attacker's UserJS inside `<script src>`. In order to execute the attack, the attacker needs to control one of the victim's feeds and have an account on the FreshRSS instance that the victim is using. An attacker can gain access to the victim's account by exploiting this vulnerability. If the victim is an admin it would be possible to delete all users (cause damage) or execute arbitrary code on the server by modifying the update URL using fetch() via the XSS. Version 1.26.2 contains a patch for the issue.
References
security-advisories@github.comhttps://github.com/FreshRSS/FreshRSS/commit/54e2f9107d03c5b3bb260f38fdb2736bce449fd4Patch
security-advisories@github.comhttps://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-wgrq-mcwc-8f8vExploit, Vendor Advisory
Impacted products
Vendor Product Version
freshrss freshrss *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:freshrss:freshrss:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5750A689-0869-499D-8A26-E5088B31DDF4",
              "versionEndExcluding": "1.26.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FreshRSS is a self-hosted RSS feed aggregator. Prior to version 1.26.2, HTML is sanitized improperly inside the `\u003ciframe srcdoc\u003e` attribute, which leads to cross-site scripting (XSS) by loading an attacker\u0027s UserJS inside `\u003cscript src\u003e`. In order to execute the attack, the attacker needs to control one of the victim\u0027s feeds and have an account on the FreshRSS instance that the victim is using. An attacker can gain access to the victim\u0027s account by exploiting this vulnerability. If the victim is an admin it would be possible to delete all users (cause damage) or execute arbitrary code on the server by modifying the update URL using fetch() via the XSS. Version 1.26.2 contains a patch for the issue."
    },
    {
      "lang": "es",
      "value": "FreshRSS es un agregador de feeds RSS autoalojado. Antes de la versi\u00f3n 1.26.2, el HTML se depuraba incorrectamente dentro del atributo ``, lo que provocaba ataques de Cross-Site Scripting (XSS) al cargar el UserJS de un atacante dentro de `\u0026lt;script src\u0026gt;`. Para ejecutar el ataque, el atacante necesita controlar uno de los feeds de la v\u00edctima y tener una cuenta en la instancia de FreshRSS que esta utiliza. Un atacante puede acceder a la cuenta de la v\u00edctima aprovechando esta vulnerabilidad. Si la v\u00edctima es administrador, podr\u00eda eliminar todos los usuarios (causar da\u00f1os) o ejecutar c\u00f3digo arbitrario en el servidor modificando la URL de actualizaci\u00f3n con fetch() mediante el XSS. La versi\u00f3n 1.26.2 incluye un parche para este problema."
    }
  ],
  "id": "CVE-2025-32015",
  "lastModified": "2025-08-12T15:31:20.170",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-06-04T20:15:23.163",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/FreshRSS/FreshRSS/commit/54e2f9107d03c5b3bb260f38fdb2736bce449fd4"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-wgrq-mcwc-8f8v"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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