CVSS 4.0
6.9 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-122139
Medium (6.9).
blueprintUE Self-Hosted Edition before 4.3.3 contains an account enumeration vulnerability in ForgotPasswordMiddleware.php that allows unauthenticated attackers to identify registered email addresses. Attackers can compare password reset redirect targets for submitted emails, and failed lookups are never rate-limited, enabling unlimited enumeration attempts.
Severity
CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N- CWE
- CWE-204 Observable Response Discrepancy
- Published
- Record from
- the NVD, synced
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Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| blueprintue-self-hosted-edition | before 4.3.3 |
Attack patterns (CAPEC)
- CAPEC-331 ICMP IP Total Length Field Probe Likelihood: Medium · Severity: Low
- CAPEC-332 ICMP IP 'ID' Field Error Message Probe Likelihood: Medium · Severity: Low
- CAPEC-541 Application Fingerprinting Severity: Low
- CAPEC-580 System Footprinting Likelihood: Low · Severity: Low
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.
References
- https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.2/app/middlewares/ForgotPasswordMiddleware.php#L130-L157
- https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/45832742182a6c4438a0d58de95ba9c7686851f2
- https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/265
- https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.3
- https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-fwgq-c3c6-p67j
- https://www.vulncheck.com/advisories/blueprintue-self-hosted-edition-before-4.3.3-account-enumeration-via-password-reset