Information disclosure in parse-server
Priority LOW 35CWE-285Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Security bypass, Information disclosure
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-285 and CWE-200.
Summary
In parser-server before version 4.1.0, you can fetch all the users objects, by using regex in the NoSQL query. Using the NoSQL, you can use a regex on sessionToken and find valid accounts this way.
Why it matters now
EPSS 0.00849 58th percentileScored 2026-11-07
Fix Fixed parse-server (parse-community): 4.1.0parse-server (npm): 4.1.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| parse-community | parse-server | before 4.1.0 | 4.1.0 | Patch available | CNA |
| — | parse-server (npm) | before 4.1.0 | 4.1.0 | Patch available | GHSA-h4mf-75hf-67w4 |
- parse-server Vendorparse-community Affected before 4.1.0 Fixed in 4.1.0 Patch available CNA
- parse-server (npm) Vendor— Affected before 4.1.0 Fixed in 4.1.0 Patch available GHSA-h4mf-75hf-67w4
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:* | before 4.1.0 | Vulnerable | parse-community |
- cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:* Versions before 4.1.0 Vulnerable ·parse-community
Remediation
- Fix · CNA parse-server (parse-community) Fixed in 4.1.0
- Fix · GHSA-h4mf-75hf-67w4 parse-server (npm) Fixed in 4.1.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-5251
- 2026-10-03 Alias added: GHSA-h4mf-75hf-67w4
References
More parse-community Parse-server vulnerabilities
- TI-2022-08574 Command Injection in Parse server CVSS 3.1CRITICAL 10.0
- TI-2024-18136 Parse Server literalizeRegexPart SQL Injection CVSS 3.1CRITICAL 10.0
- TI-2022-18768 Parse Server vulnerable to Remote Code Execution via prototype pollution in MongoDB BSON parser CVSS 3.1CRITICAL 9.8
- TI-2024-31550 Parse Server's custom object ID allows to acquire role privileges CVSS 3.1HIGH 8.1
- TI-2023-18316 Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution CVSS 3.1CRITICAL 9.8
- TI-2026-23790 Parse Server session token exfiltration via `redirectClassNameForKey` query parameter CVSS 4.0CRITICAL 9.9
Sources
- CVE-2020-5251 · CVE Program
- CVE-2020-5251 · NVD
- FIRST EPSS
- GHSA-h4mf-75hf-67w4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences