{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55085", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-16T14:41:54.578Z", "datePublished": "2026-08-19T19:34:27.269Z", "dateUpdated": "2026-08-21T19:47:13.022Z"}, "containers": {"cna": {"title": "Etherpad: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in etherpad-lite", "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": "LOW", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/ether/etherpad/security/advisories/GHSA-f7h5-v9hm-548j", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/ether/etherpad/security/advisories/GHSA-f7h5-v9hm-548j"}, {"name": "https://github.com/ether/etherpad/pull/7937", "tags": ["x_refsource_MISC"], "url": "https://github.com/ether/etherpad/pull/7937"}, {"name": "https://github.com/ether/etherpad/commit/d828185efcac9abc2e46e6da1c171393500fa319", "tags": ["x_refsource_MISC"], "url": "https://github.com/ether/etherpad/commit/d828185efcac9abc2e46e6da1c171393500fa319"}, {"name": "https://github.com/ether/etherpad/releases/tag/v3.3.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/ether/etherpad/releases/tag/v3.3.1"}], "affected": [{"vendor": "ether", "product": "etherpad", "versions": [{"version": "< 3.3.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-19T19:34:27.269Z"}, "descriptions": [{"lang": "en", "value": "Etherpad is a real-time collaborative editor. Prior to 3.3.1, result.appendSpan in src/static/js/domline.ts interpolates the start attribute of a numbered list directly into an unquoted ol start attribute before assigning the generated markup to node.innerHTML. ImportEtherpad.setPadRaw in src/node/utils/ImportEtherpad.ts accepts attacker-controlled attribute-pool values from a crafted .etherpad import, including list:number1 and a malicious start value. Any user with write access to a pad can store markup that executes as cross-site scripting when another user opens the pad or /timeslider, including when an administrator views the pad. This issue is fixed in version 3.3.1."}], "source": {"advisory": "GHSA-f7h5-v9hm-548j", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/ether/etherpad/security/advisories/GHSA-f7h5-v9hm-548j", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-21T19:46:45.454820Z", "id": "CVE-2026-55085", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-21T19:47:13.022Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-55085", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-21T19:46:45.454820Z"}}}], "references": [{"url": "https://github.com/ether/etherpad/security/advisories/GHSA-f7h5-v9hm-548j", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-21T19:47:08.083Z"}}], "cna": {"title": "Etherpad: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in etherpad-lite", "source": {"advisory": "GHSA-f7h5-v9hm-548j", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.6, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "ether", "product": "etherpad", "versions": [{"status": "affected", "version": "< 3.3.1"}]}], "references": [{"url": "https://github.com/ether/etherpad/security/advisories/GHSA-f7h5-v9hm-548j", "name": "https://github.com/ether/etherpad/security/advisories/GHSA-f7h5-v9hm-548j", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/ether/etherpad/pull/7937", "name": "https://github.com/ether/etherpad/pull/7937", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/ether/etherpad/commit/d828185efcac9abc2e46e6da1c171393500fa319", "name": "https://github.com/ether/etherpad/commit/d828185efcac9abc2e46e6da1c171393500fa319", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/ether/etherpad/releases/tag/v3.3.1", "name": "https://github.com/ether/etherpad/releases/tag/v3.3.1", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Etherpad is a real-time collaborative editor. Prior to 3.3.1, result.appendSpan in src/static/js/domline.ts interpolates the start attribute of a numbered list directly into an unquoted ol start attribute before assigning the generated markup to node.innerHTML. ImportEtherpad.setPadRaw in src/node/utils/ImportEtherpad.ts accepts attacker-controlled attribute-pool values from a crafted .etherpad import, including list:number1 and a malicious start value. Any user with write access to a pad can store markup that executes as cross-site scripting when another user opens the pad or /timeslider, including when an administrator views the pad. This issue is fixed in version 3.3.1."}], "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": "2026-08-19T19:34:27.269Z"}}}, "cveMetadata": {"cveId": "CVE-2026-55085", "state": "PUBLISHED", "dateUpdated": "2026-08-21T19:47:13.022Z", "dateReserved": "2026-06-16T14:41:54.578Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-08-19T19:34:27.269Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "etherpad", "vendor": "ether", "versions": [{"status": "affected", "version": "< 3.3.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Etherpad is a real-time collaborative editor. Prior to 3.3.1, result.appendSpan in src/static/js/domline.ts interpolates the start attribute of a numbered list directly into an unquoted ol start attribute before assigning the generated markup to node.innerHTML. ImportEtherpad.setPadRaw in src/node/utils/ImportEtherpad.ts accepts attacker-controlled attribute-pool values from a crafted .etherpad import, including list:number1 and a malicious start value. Any user with write access to a pad can store markup that executes as cross-site scripting when another user opens the pad or /timeslider, including when an administrator views the pad. This issue is fixed in version 3.3.1."}], "id": "CVE-2026-55085", "lastModified": "2026-08-21T20:16:37.450", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55085", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-21T19:46:45.454820Z", "version": "2.0.3"}}]}, "published": "2026-08-19T20:17:17.280", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/ether/etherpad/commit/d828185efcac9abc2e46e6da1c171393500fa319"}, {"source": "security-advisories@github.com", "url": "https://github.com/ether/etherpad/pull/7937"}, {"source": "security-advisories@github.com", "url": "https://github.com/ether/etherpad/releases/tag/v3.3.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/ether/etherpad/security/advisories/GHSA-f7h5-v9hm-548j"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/ether/etherpad/security/advisories/GHSA-f7h5-v9hm-548j"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.3.1)"}}], "enrichment": {"confidence": 90.0, "confidence_source": "matching", "scores": [{"score": 90.0, "source": "matching"}]}, "original": {"product": "etherpad", "source": "cna", "vendor": "ether"}, "product": "etherpad", "vendor": "etherpad"}], "created": "2026-08-19T23:30:17.088169+00:00", "updated": "2026-08-21T13:03:26.635842+00:00", "vendors": ["etherpad", "etherpad$PRODUCT$etherpad"]}