Parse Server Multiple Vulnerabilities

Parse Server versions prior to 9.6.0-alpha.6 and 8.6.32 allow attackers to bypass class-level permission restrictions on protected fields by using dot-notation in query and sort parameters, enabling enumeration of sensitive field values through binary oracle attacks. This affects both MongoDB and PostgreSQL deployments and requires no authentication or user interaction. No patch is currently available for affected versions.

Stored XSS in Parse Server prior to versions 9.6.0-alpha.4 and 8.6.30 allows unauthenticated attackers to upload files with dangerous extensions (such as .svgz, .xht, .xml) that bypass default upload filters and execute malicious scripts in users' browsers within the Parse Server domain. Successful exploitation enables attackers to steal session tokens, hijack user accounts, or perform unauthorized actions on behalf of victims. User interaction is required to trigger the vulnerability when victims access the uploaded malicious files.

Parse Server's TOTP-based multi-factor authentication fails to invalidate recovery codes after use, allowing an attacker with a single recovery code to authenticate repeatedly as an affected user. This vulnerability impacts Parse Server deployments prior to versions 9.6.0-alpha.7 and 8.6.33, where recovery codes intended as single-use fallback mechanisms can be exploited indefinitely to bypass MFA protections. No patch is currently available for affected versions.