Improper Neutralization of Special Elements in Data Query Logic in Parse Server - #VU149931
Published: September 15, 2026
Vulnerability identifier: #VU149931
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-943
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to delete device registration records.
The vulnerability exists due to improper neutralization of special elements in data query logic in device token deduplication when processing client-supplied installation fields. A remote attacker can send ordinary HTTP requests containing query operators in installation field values to delete every device registration or an attacker-chosen subset.
Only the public application ID is required.
Affected software
Parse Server
Remediation
Install security update from vendor's website.
Parse Server - addressed in versions 8.6.90, 9.10.1 alpha.9