CVE-2026-68551 (GCVE-0-2026-68551)
Vulnerability from cvelistv5 – Published: 2026-11-13 19:14 – Updated: 2026-11-13 21:20
VLAI
EPSS
VEX
Title
Budget Board's OIDC login links to an existing local account by email alone, with no email_verified check, enabling account takeover of pre-existing users
Summary
Budget Board is an app for tracking monthly spending and working towards financial goals. Prior to version 3.6.2, Budget Board's OIDC login flow finds and signs into an existing local account purely by matching the email address asserted in the identity provider's token - it never checks the standard email_verified claim. If the configured OIDC provider ever allows a user to register or display an email address without proving they own it , an attacker can register there using a victim's email and get signed into the victim's existing Budget Board account - including all their linked bank data. This issue has been patched in version 3.6.2.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-13 21:20 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/teelur/budget-board/security/a… | x_refsource_CONFIRM |
| https://github.com/teelur/budget-board/pull/956 | x_refsource_MISC |
| https://github.com/teelur/budget-board/commit/8c0… | x_refsource_MISC |
| https://github.com/teelur/budget-board/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| teelur | budget-board |
Affected:
< 3.6.2
|
guessed |
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Sightings
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|---|
Nomenclature
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Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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