{"id":"CVE-2026-55566","summary":"Yamcs: DOM XSS in Extension Routing","details":"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.","aliases":["GHSA-9272-wg2r-7xmx"],"modified":"2026-09-10T03:30:44.053027043Z","published":"2026-08-28T17:31:39.197Z","database_specific":{"cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55566.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8"},{"type":"WEB","url":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55566.json"},{"type":"ADVISORY","url":"https://github.com/yamcs/yamcs/security/advisories/GHSA-9272-wg2r-7xmx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55566"},{"type":"FIX","url":"https://github.com/yamcs/yamcs/commit/8e18e279d8ce761c21f4f67bbd06a1bff804d297"},{"type":"FIX","url":"https://github.com/yamcs/yamcs/commit/ecf34a4e2ccbe085e6ceff0253595b24d5ecb4aa"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/yamcs/yamcs","events":[{"introduced":"0"},{"introduced":"8bf5af6fe227bbf8ead15e60644b7ddbf345d623"},{"fixed":"144335f15d7730d7fc833122c8c8a6f1906fea9f"},{"fixed":"50d73a44d136f0dd2828fa11f69f1fe1fc5583f7"},{"fixed":"8e18e279d8ce761c21f4f67bbd06a1bff804d297"},{"fixed":"ecf34a4e2ccbe085e6ceff0253595b24d5ecb4aa"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"5.12.8"},{"introduced":"5.13.0"},{"fixed":"5.13.2"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["yamcs-5.13.1","yamcs-5.13.0","yamcs-5.12.7","yamcs-5.12.6","yamcs-5.12.5","yamcs-5.12.4","yamcs-5.12.3","yamcs-5.12.2","yamcs-5.12.1","yamcs-5.12.0","yamcs-5.11.7","yamcs-5.9.8","yamcs-5.11.6","yamcs-5.11.5","yamcs-5.11.4","yamcs-5.10.9","yamcs-5.11.3","yamcs-5.11.2","yamcs-5.11.1","yamcs-5.11.0","yamcs-5.10.8","yamcs-5.10.7","yamcs-5.10.6","yamcs-5.10.5","yamcs-5.10.4","yamcs-5.10.3","yamcs-5.10.2","yamcs-5.10.1","yamcs-5.10.0","yamcs-5.9.7","yamcs-5.9.6","yamcs-5.9.5","yamcs-5.9.4","yamcs-5.9.3","yamcs-5.9.2","yamcs-5.9.1","yamcs-5.9.0","yamcs-5.8.8","yamcs-5.8.7","yamcs-5.8.6","yamcs-5.8.5","yamcs-5.8.4","yamcs-5.8.3","yamcs-5.8.2","yamcs-5.8.0","yamcs-5.8.1","yamcs-5.7.10","yamcs-5.7.9","yamcs-5.7.8","yamcs-5.7.7","yamcs-5.7.6","yamcs-5.7.5","yamcs-5.7.4","yamcs-5.7.3","yamcs-5.7.2","yamcs-5.7.1","yamcs-5.7.0","yamcs-5.6.2","yamcs-5.5.7","yamcs-5.6.1","yamcs-5.6.0","yamcs-5.5.6","before-removing-cfdp-half-implemented-features","yamcs-5.5.5","yamcs-5.5.4","yamcs-5.5.3","yamcs-5.5.2","yamcs-5.5.1","yamcs-5.5.0","yamcs-5.3.5","yamcs-5.4.3","yamcs-5.4.2","yamcs-5.4.1","yamcs-5.4.0","yamcs-5.2.0","yamcs-5.3.4","yamcs-5.3.3","yamcs-5.3.2","yamcs-5.3.1","yamcs-5.3.0","yamcs-5.1.3","yamcs-5.1.2","yamcs-5.1.1","yamcs-5.1.0","yamcs-5.0.1","yamcs-5.0.0","yamcs-4.10.9","yamcs-4.10.8","yamcs-4.10.7","yamcs-4.10.6","yamcs-4.10.5","yamcs-4.10.4","yamcs-4.10.3","yamcs-4.10.2","yamcs-4.10.1","yamcs-4.10.0","yamcs-4.9.5","yamcs-4.9.4","yamcs-4.9.3","yamcs-4.9.2","yamcs-4.9.1","yamcs-4.9.0","yamcs-4.8.1","yamcs-4.8.0","yamcs-4.7.3","yamcs-4.7.2","yamcs-4.7.1","yamcs-4.7","yamcs-4.4.2","yamcs-4.4.1","yamcs-4.4.0","yamcs-4.3.1","yamcs-4.3.0","yamcs-4.2.2","yamcs-4.2.1","yamcs-4.2.0","yamcs-4.1.2","yamcs-4.1.1","yamcs-4.0.1","yamcs-3.4.0","yamcs-3.3.0","yamcs-3.2.2","yamcs-3.2.1","yamcs-3.2.0","yamcs-3.1.2","yamcs-3.1.1","yamcs-3.1.0","yamcs-3.0.0","yamcs-0.30.0","v0.29.4","v0.29.3-20160608","v0.29.3","v0.29.1","v0.29.1-20160127","v0.29.1-20160119","v0.29.1-20151214","v0.29.0","v0.28.0","v0.28.0-20150903","v0.28.0-20150902-2","v0.28.0-20150902","v0.28.0-20150901","v0.28.0-20150828","v0.28.0-20150827","v0.28.0-20150826","v0.28.0-20150825","v0.28.0-20150824","v0.28.0-20150820","v0.28.0-20150817","v0.28.0-20150811","v0.26.1","v0.26.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-55566.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N"}]}