SB2020030321 - Improper access control in parse-server

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Main Vulnerability Database SB2020030321

SB2020030321 - Improper access control in parse-server

Published: March 3, 2020 Updated: May 23, 2026

Security Bulletin ID SB2020030321
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper access control (CVE-ID: CVE-2020-5251)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to improper access control in the users endpoint when processing NoSQL queries containing regex operators on sessionToken values. A remote attacker can send a specially crafted request to disclose sensitive information.

The issue can be exploited without user interaction by using regex matching to identify valid accounts.


Remediation

Install update from vendor's website.

References