{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-27627", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-02-20T22:02:30.027Z", "datePublished": "2026-02-25T03:48:07.431Z", "dateUpdated": "2026-02-25T21:20:03.257Z"}, "containers": {"cna": {"title": "Karakeep's Reddit plugin content bypasses DOMPurify sanitization, enabling stored XSS", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "karakeep-app", "product": "karakeep", "versions": [{"version": "= 0.30.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-25T03:48:07.431Z"}, "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's browser. Version 0.31.0 contains a patch for this issue."}], "source": {"advisory": "GHSA-mg93-f9mw-wpgj", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-25T21:19:52.460762Z", "id": "CVE-2026-27627", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-25T21:20:03.257Z"}}]}}

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