CVE-2021-46250

CVE-2021-46250 is a critical authentication bypass vulnerability in ScratchOAuth2, specifically in the SOA2Login::commented function, affecting versions prior to commit a91879bd58fa83b09283c0708a1864cdf067c64a. This flaw allows unauthenticated attackers to impersonate other users on systems relying on ScratchOAuth2. With a CVSS score of 10.0, it presents a critical risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or inclusion in CISA's KEV catalog, the vulnerability has garnered significant community discussion with 10 mentions.