FKIE_CVE-2026-54681

Vulnerability from fkie_nvd - Published: 2026-08-21 19:17 - Updated: 2026-10-14 19:10
Severity
4.1 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
DiscordChatExporter saves Discord chat logs to a file. Prior to 2.47.2, the VisitEmojiAsync method in DiscordChatExporter.Core/Exporting/HtmlMarkdownVisitor.cs interpolates emoji.Name into the alt attribute and emoji.Code into the title attribute without HTML entity encoding. This affects HTML exports regardless of the markdown setting. Discord's current custom emoji name validation normally excludes attribute-breaking characters, but tampered offline input, a relaxed upstream validation rule, or another future metadata source can inject an HTML attribute and execute script when a user opens the export. This issue is fixed in version 2.47.2.
References
security-advisories@github.comhttps://github.com/Tyrrrz/DiscordChatExporter/commit/f4d1e630f7f27120c3be4320d92cc8b932e78688
security-advisories@github.comhttps://github.com/Tyrrrz/DiscordChatExporter/pull/1544
security-advisories@github.comhttps://github.com/Tyrrrz/DiscordChatExporter/releases/tag/2.47.2
security-advisories@github.comhttps://github.com/Tyrrrz/DiscordChatExporter/security/advisories/GHSA-r7qm-wg9p-pjfc
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/Tyrrrz/DiscordChatExporter/security/advisories/GHSA-r7qm-wg9p-pjfc
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "DiscordChatExporter",
          "vendor": "Tyrrrz",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.47.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "DiscordChatExporter saves Discord chat logs to a file. Prior to 2.47.2, the VisitEmojiAsync method in DiscordChatExporter.Core/Exporting/HtmlMarkdownVisitor.cs interpolates emoji.Name into the alt attribute and emoji.Code into the title attribute without HTML entity encoding. This affects HTML exports regardless of the markdown setting. Discord\u0027s current custom emoji name validation normally excludes attribute-breaking characters, but tampered offline input, a relaxed upstream validation rule, or another future metadata source can inject an HTML attribute and execute script when a user opens the export. This issue is fixed in version 2.47.2."
    },
    {
      "lang": "es",
      "value": "DiscordChatExporter guarda los registros de chat de Discord en un archivo. Antes de 2.47.2, el m\u00e9todo VisitEmojiAsync en DiscordChatExporter.Core/Exporting/HtmlMarkdownVisitor.cs interpola emoji.Name en el atributo alt y emoji.Code en el atributo title sin codificaci\u00f3n de entidades HTML. Esto afecta a las exportaciones HTML independientemente de la configuraci\u00f3n de markdown. La validaci\u00f3n actual de nombres de emojis personalizados de Discord normalmente excluye caracteres que rompen atributos, pero una entrada sin conexi\u00f3n manipulada, una regla de validaci\u00f3n ascendente relajada o cualquier otra fuente de metadatos futura puede inyectar un atributo HTML y ejecutar un script cuando un usuario abre la exportaci\u00f3n. Este problema est\u00e1 solucionado en la versi\u00f3n 2.47.2."
    }
  ],
  "id": "CVE-2026-54681",
  "lastModified": "2026-10-14T19:10:00.297",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 2.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54681",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-21T19:04:35.533953Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T19:17:03.457",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Tyrrrz/DiscordChatExporter/commit/f4d1e630f7f27120c3be4320d92cc8b932e78688"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Tyrrrz/DiscordChatExporter/pull/1544"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Tyrrrz/DiscordChatExporter/releases/tag/2.47.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Tyrrrz/DiscordChatExporter/security/advisories/GHSA-r7qm-wg9p-pjfc"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/Tyrrrz/DiscordChatExporter/security/advisories/GHSA-r7qm-wg9p-pjfc"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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