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Salt Security Discovers Flaws in Social Login Mechanism Impacting 1000s of Websites and Exposing Billions of Users to Account Takeover

Cision PR Newswire

PALO ALTO, Calif.Oct. 24, 2023 /PRNewswire/ -- Salt Security, the leading API security company, today released new threat research from Salt Labs highlighting API security vulnerabilities uncovered in the social sign-in and Open Authentication (OAuth) implementations of multiple online companies, including Grammarly, Vidio, and Bukalapak. The flaws, which have since been remediated, could have allowed for credential leakage and enabled full account takeover (ATO). Salt Labs also reported that 1000s of other websites using social sign-in mechanisms are likely vulnerable to the same type of attack, putting billions of individuals around the globe at risk.

These findings mark the third and final research report in the Salt Labs OAuth hijacking series, following vulnerabilities uncovered in and Expo earlier this year.

This latest research identified flaws in the access token verification step of the social sign-in process, part of the OAuth implementation on these websites. The vulnerabilities could have impacted nearly a billion user accounts across these three sites.

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