{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "karakeep",
          "vendor": "karakeep-app",
          "versions": [
            {
              "status": "affected",
              "version": "= 0.30.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Karakeep is a elf-hostable bookmark-everything app. In version 0.30.0, when the Reddit metascraper plugin returns `readableContentHtml`, the HTML parsing subprocess uses it directly without running it through DOMPurify. Every other content source in the crawler goes through Readability + DOMPurify, but the Reddit path skips both. Since this content ends up in `dangerouslySetInnerHTML` in the reader view, any malicious HTML in the Reddit response gets executed in the user\u0027s browser. Version 0.31.0 contains a patch for this issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-25T03:48:07.431Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/karakeep-app/karakeep/security/advisories/GHSA-mg93-f9mw-wpgj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/karakeep-app/karakeep/security/advisories/GHSA-mg93-f9mw-wpgj"
        },
        {
          "name": "https://github.com/karakeep-app/karakeep/commit/ba3db953c0d8675e2e3ecc29113a332b570b2cb9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/karakeep-app/karakeep/commit/ba3db953c0d8675e2e3ecc29113a332b570b2cb9"
        },
        {
          "name": "https://github.com/karakeep-app/karakeep/releases/tag/v0.31.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/karakeep-app/karakeep/releases/tag/v0.31.0"
        }
      ],
      "source": {
        "advisory": "GHSA-mg93-f9mw-wpgj",
        "discovery": "UNKNOWN"
      },
      "title": "Karakeep\u0027s Reddit plugin content bypasses DOMPurify sanitization, enabling stored XSS"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27627",
    "datePublished": "2026-02-25T03:48:07.431Z",
    "dateReserved": "2026-02-20T22:02:30.027Z",
    "dateUpdated": "2026-02-25T03:48:07.431Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}