id: PYSEC-2025-254
published: "2025-06-13T14:15:20.030Z"
modified: "2026-07-13T05:50:28.880456Z"
aliases:
- CVE-2025-28380
details: 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.
affected:
- package:
    name: openc3
    ecosystem: PyPI
    purl: pkg:pypi/openc3
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - last_affected: 6.0.0
  versions:
  - 0.1.0
  - 5.10.0
  - 5.10.1
  - 5.11.0
  - 5.11.1
  - 5.11.2
  - 5.11.3
  - 5.12.0
  - 5.13.0
  - 5.14.0
  - 5.14.1
  - 5.14.2
  - 5.15.0
  - 5.15.1
  - 5.15.2
  - 5.16.0
  - 5.16.1
  - 5.16.2
  - 5.17.0
  - 5.17.1
  - 5.18.0
  - 5.19.0
  - 5.20.0
  - 5.9.2b0
  - 6.0.0
  ecosystem_specific: {}
references:
- type: WEB
  url: https://github.com/OpenC3/cosmos/releases/tag/v6.0.2
- type: WEB
  url: https://openc3.com/
- type: FIX
  url: https://github.com/OpenC3/cosmos/commit/12e3e12307afd3dbfc306f20d60400989db89883
- type: FIX
  url: https://github.com/OpenC3/cosmos/pull/1816
- type: EVIDENCE
  url: https://visionspace.com/openc3-cosmos-a-security-assessment-of-an-open-source-mission-framework/
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N