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Description

blueprintUE is a tool to help Unreal Engine developers. Prior to 4.2.0, the password change form at /profile/{slug}/edit/ does not include a current_password field and does not verify the user's existing password before accepting a new one. Any attacker who obtains a valid authenticated session — through XSS exploitation, session sidejacking over HTTP, physical access to a logged-in browser, or a stolen "remember me" cookie — can immediately change the account password without knowing the original credential, resulting in permanent account takeover. This vulnerability is fixed in 4.2.0.

PUBLISHED Reserved 2026-04-14 | Published 2026-04-21 | Updated 2026-04-22 | Assigner GitHub_M




HIGH: 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-620: Unverified Password Change

Product status

< 4.2.0
affected

References

github.com/...dition/security/advisories/GHSA-73f2-p9jr-m44x exploit

github.com/...dition/security/advisories/GHSA-73f2-p9jr-m44x

cve.org (CVE-2026-40588)

nvd.nist.gov (CVE-2026-40588)

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