{"id":"CVE-2026-71854","title":"OpenAEV is an open source platform allowing organizations to plan, schedule and conduct cyber adversary simulation campaign and tests","summary":"OpenAEV is an open source platform allowing organizations to plan, schedule and conduct cyber adversary simulation campaign and tests. Prior to version 2.260622.0, on a default installation, the `/api/player/**` lessons endpoints can be …","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","cwe":["CWE-306","CWE-639","CWE-862"],"vendor":"OpenAEV-Platform","product":"openaev","affected":["openaev < 2.260622.0"],"published":"2026-10-14","updated":"2026-10-16","sourceUpdated":"2026-10-16T20:04:29.760","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-71854","references":[{"url":"https://github.com/OpenAEV-Platform/openaev/security/advisories/GHSA-47wr-wp4h-8v3f","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"epss":0.00245,"epssPercentile":0.15676,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-15T13:55:51.211773Z"},"ingestedAt":"2026-10-14T21:57:04.830Z","slug":"CVE-2026-71854","body":"## Overview\n\nOpenAEV is an open source platform allowing organizations to plan, schedule and conduct cyber adversary simulation campaign and tests. Prior to version 2.260622.0, on a default installation, the `/api/player/**` lessons endpoints can be called without authentication, and they trust a client-supplied `userId` query parameter without verifying that the caller is that user or a member of the exercise. An unauthenticated client that knows an exercise UUID can read lessons-learned questions and answers (including each answer's author identity) and create or overwrite answers attributed to an arbitrary user. Version 2.260622.0 contains a patch.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}