CVE-2020-26236 describes a critical authentication bypass vulnerability in ScratchVerifier before commit a603769, allowing an attacker to hijack user accounts on sites utilizing it for logins. The attack involves an attacker initiating a login for a target user, obtaining the same verification code, and then completing the login after the legitimate user comments the code but before they finalize their own login. This vulnerability carries a CVSS score of 7.5 (HIGH) due to its network-based attack vector, high impact on confidentiality, integrity, and availability, and reliance on user interaction and high attack complexity. While no active exploitation, public exploit code, or significant community discussion has been observed, the vulnerability is patched in newer versions of ScratchVerifier.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< a603769CPE matchmatch criteria | cpe:2.3:a:scratchverifier:scratchverifier:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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