{"id":"CVE-2025-28380","aliases":["PYSEC-2025-254"],"title":"A cross-site scripting (XSS) vulnerability in OpenC3 COSMOS before v6.0.2 allows attackers to execute arbitrary web scripts or HTML via i…","summary":"A cross-site scripting (XSS) vulnerability in OpenC3 COSMOS before v6.0.2 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the URL parameter.","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","vendor":"openc3","product":"openc3","ecosystem":"pip","affected":["openc3 <= 6.0.0"],"published":"2025-06-13","updated":"2026-07-13","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/PYSEC-2025-254","references":[{"url":"https://github.com/OpenC3/cosmos/releases/tag/v6.0.2"},{"url":"https://openc3.com/"},{"url":"https://github.com/OpenC3/cosmos/commit/12e3e12307afd3dbfc306f20d60400989db89883"},{"url":"https://github.com/OpenC3/cosmos/pull/1816"},{"url":"https://visionspace.com/openc3-cosmos-a-security-assessment-of-an-open-source-mission-framework/"}],"tags":["osv","pip"],"epss":0.00338,"epssPercentile":0.24586,"ingestedAt":"2026-07-13T18:58:06.704Z","slug":"CVE-2025-28380","body":"## Overview\n\nA cross-site scripting (XSS) vulnerability in OpenC3 COSMOS before v6.0.2 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the URL parameter.\n\n## Affected packages\n\n- `openc3 <= 6.0.0`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}