{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55566", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-16T23:11:20.214Z", "datePublished": "2026-08-28T17:31:39.197Z", "dateUpdated": "2026-08-28T20:31:29.178Z"}, "containers": {"cna": {"title": "Yamcs: DOM XSS in Extension Routing", "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": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9272-wg2r-7xmx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9272-wg2r-7xmx"}, {"name": "https://github.com/yamcs/yamcs/commit/8e18e279d8ce761c21f4f67bbd06a1bff804d297", "tags": ["x_refsource_MISC"], "url": "https://github.com/yamcs/yamcs/commit/8e18e279d8ce761c21f4f67bbd06a1bff804d297"}, {"name": "https://github.com/yamcs/yamcs/commit/ecf34a4e2ccbe085e6ceff0253595b24d5ecb4aa", "tags": ["x_refsource_MISC"], "url": "https://github.com/yamcs/yamcs/commit/ecf34a4e2ccbe085e6ceff0253595b24d5ecb4aa"}, {"name": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8", "tags": ["x_refsource_MISC"], "url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8"}, {"name": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2"}], "affected": [{"vendor": "yamcs", "product": "yamcs", "versions": [{"version": "< 5.12.8", "status": "affected"}, {"version": ">= 5.13.0, < 5.13.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-28T17:31:39.197Z"}, "descriptions": [{"lang": "en", "value": "Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs processes attacker-controlled data from the /ext URL route in yamcs-web/src/main/webapp/projects/webapp/src/app/core/routes/extension.matcher.ts, extension.component.ts, and app.component.ts without checking registered plugin IDs before DOM rendering through innerHTML. A crafted URL can execute JavaScript when opened by a user. The script can read data available to the Yamcs web application and perform actions in the user context. This issue is fixed in versions 5.12.8 and 5.13.2."}], "source": {"advisory": "GHSA-9272-wg2r-7xmx", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9272-wg2r-7xmx", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-28T20:30:29.994741Z", "id": "CVE-2026-55566", "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": "2026-08-28T20:31:29.178Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-55566", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-28T20:30:29.994741Z"}}}], "references": [{"url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9272-wg2r-7xmx", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-28T20:30:47.765Z"}}], "cna": {"title": "Yamcs: DOM XSS in Extension Routing", "source": {"advisory": "GHSA-9272-wg2r-7xmx", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "yamcs", "product": "yamcs", "versions": [{"status": "affected", "version": "< 5.12.8"}, {"status": "affected", "version": ">= 5.13.0, < 5.13.2"}]}], "references": [{"url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9272-wg2r-7xmx", "name": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9272-wg2r-7xmx", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/yamcs/yamcs/commit/8e18e279d8ce761c21f4f67bbd06a1bff804d297", "name": "https://github.com/yamcs/yamcs/commit/8e18e279d8ce761c21f4f67bbd06a1bff804d297", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/yamcs/yamcs/commit/ecf34a4e2ccbe085e6ceff0253595b24d5ecb4aa", "name": "https://github.com/yamcs/yamcs/commit/ecf34a4e2ccbe085e6ceff0253595b24d5ecb4aa", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8", "name": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2", "name": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs processes attacker-controlled data from the /ext URL route in yamcs-web/src/main/webapp/projects/webapp/src/app/core/routes/extension.matcher.ts, extension.component.ts, and app.component.ts without checking registered plugin IDs before DOM rendering through innerHTML. A crafted URL can execute JavaScript when opened by a user. The script can read data available to the Yamcs web application and perform actions in the user context. This issue is fixed in versions 5.12.8 and 5.13.2."}], "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": "2026-08-28T17:31:39.197Z"}}}, "cveMetadata": {"cveId": "CVE-2026-55566", "state": "PUBLISHED", "dateUpdated": "2026-08-28T20:31:29.178Z", "dateReserved": "2026-06-16T23:11:20.214Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-08-28T17:31:39.197Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "yamcs", "vendor": "yamcs", "versions": [{"status": "affected", "version": "< 5.12.8"}, {"status": "affected", "version": ">= 5.13.0, < 5.13.2"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs processes attacker-controlled data from the /ext URL route in yamcs-web/src/main/webapp/projects/webapp/src/app/core/routes/extension.matcher.ts, extension.component.ts, and app.component.ts without checking registered plugin IDs before DOM rendering through innerHTML. A crafted URL can execute JavaScript when opened by a user. The script can read data available to the Yamcs web application and perform actions in the user context. This issue is fixed in versions 5.12.8 and 5.13.2."}], "id": "CVE-2026-55566", "lastModified": "2026-08-28T22:16:51.187", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "[email protected]", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55566", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-28T20:30:29.994741Z", "version": "2.0.3"}}]}, "published": "2026-08-28T20:18:29.207", "references": [{"source": "[email protected]", "url": "https://github.com/yamcs/yamcs/commit/8e18e279d8ce761c21f4f67bbd06a1bff804d297"}, {"source": "[email protected]", "url": "https://github.com/yamcs/yamcs/commit/ecf34a4e2ccbe085e6ceff0253595b24d5ecb4aa"}, {"source": "[email protected]", "url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8"}, {"source": "[email protected]", "url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2"}, {"source": "[email protected]", "url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9272-wg2r-7xmx"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9272-wg2r-7xmx"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "[email protected]", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.12.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.13.0,5.13.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "yamcs", "source": "cna", "vendor": "yamcs"}, "product": "yamcs", "vendor": "yamcs"}], "created": "2026-08-28T21:30:05.386424+00:00", "updated": "2026-08-28T21:45:03.385322+00:00", "vendors": ["yamcs", "yamcs$PRODUCT$yamcs"]}