{"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"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-27627", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-25T21:19:52.460762Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-25T21:19:58.400Z"}}], "cna": {"title": "Karakeep's Reddit plugin content bypasses DOMPurify sanitization, enabling stored XSS", "source": {"advisory": "GHSA-mg93-f9mw-wpgj", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "karakeep-app", "product": "karakeep", "versions": [{"status": "affected", "version": "= 0.30.0"}]}], "references": [{"url": "https://github.com/karakeep-app/karakeep/security/advisories/GHSA-mg93-f9mw-wpgj", "name": "https://github.com/karakeep-app/karakeep/security/advisories/GHSA-mg93-f9mw-wpgj", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/karakeep-app/karakeep/commit/ba3db953c0d8675e2e3ecc29113a332b570b2cb9", "name": "https://github.com/karakeep-app/karakeep/commit/ba3db953c0d8675e2e3ecc29113a332b570b2cb9", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/karakeep-app/karakeep/releases/tag/v0.31.0", "name": "https://github.com/karakeep-app/karakeep/releases/tag/v0.31.0", "tags": ["x_refsource_MISC"]}], "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-25T03:48:07.431Z"}}}, "cveMetadata": {"cveId": "CVE-2026-27627", "state": "PUBLISHED", "dateUpdated": "2026-02-25T21:20:03.257Z", "dateReserved": "2026-02-20T22:02:30.027Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-02-25T03:48:07.431Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:localhostlabs:karakeep:0.30.0:*:*:*:*:node.js:*:*", "matchCriteriaId": "03C26354-DA55-4BDC-8647-DC0A89E225BB", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2026-27627", "lastModified": "2026-02-27T18:48:34.580", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 4.7, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-02-25T04:16:03.757", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/karakeep-app/karakeep/commit/ba3db953c0d8675e2e3ecc29113a332b570b2cb9"}, {"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/karakeep-app/karakeep/releases/tag/v0.31.0"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/karakeep-app/karakeep/security/advisories/GHSA-mg93-f9mw-wpgj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.30.0"}}], "enrichment": {"confidence": 89.0, "confidence_source": "matching", "scores": [{"score": 89.0, "source": "matching"}]}, "original": {"product": "karakeep", "source": "cna", "vendor": "karakeep-app"}, "product": "karakeep", "vendor": "karakeep"}], "created": "2026-02-25T11:34:43.237376+00:00", "updated": "2026-02-25T11:34:43.237468+00:00", "vendors": ["karakeep", "karakeep$PRODUCT$karakeep"]}