CVE-2026-40588

blueprintUE: Authenticated Password Change Does Not Verify Current Password

State
Published
Severity
8.1 High
Published
Apr 21, 2026
Updated
Apr 22, 2026
Reserved
Apr 14, 2026

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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.

Scores

CVSSScoreVectorSource
3.18.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NGitHub_M

Weaknesses

Affected Products

ProductVersions
blueprintue-self-hosted-editionblueprintue
  • < 4.2.0Affected

References

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