Home/CVE/Parse Server (npm package parse-server) broadcasts events to all clients without checking if the session token is valid.
CVE

CVE-2020-15270

Parse Server (npm package parse-server) broadcasts events to all clients without checking if the session token is valid.

Parse Server (npm package parse-server) broadcasts events to all clients without checking if the session token is valid. This allows clients with expired sessions to still receive subscription objects. It is not possible to create subscription objects with invalid session tokens.

The issue is not patched.

MEDIUM · CVSS 4.3 EPSS 0.00253
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-672Operation on a Resource after Expiration or Release
CWE-672Operation on a Resource after Expiration or Release
▤

Affected Products & Versions

1
parseplatform parse-server<= 4.3.0
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm parse-server MODERATE fixed in 4.4.0
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Oct 2020 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/parse-community/parse-server/commit/78b59fb26b1c36e3cdbd42ba9fec025003267f58PatchThird Party Advisory
https://github.com/parse-community/parse-server/security/advisories/GHSA-2xm2-xj2q-qgpjThird Party Advisory
https://npmjs.com/parse-serverProductThird Party Advisory
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