CVE-2022-39231Network attack vector

Unauthorized login via substring app ID matching

Published Sep 23, 2022 · Updated Apr 23, 2025

Improper authentication in Parse Server before 4.10.16 and 5.0.0 through 5.2.6 allows remote attackers to log in through another app. The Facebook and Spotify adapters use string indexOf against appIds without enforcing an array, so a substring app ID passes the intended equality check. Exploitation requires a provider-issued access token with an app ID that is a substring of the configured string, enabling unauthorized account authentication.

CVSS severity3.7
Low
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Parse Server before 4.10.16 and 5.0.0 through 5.2.6 allows remote attackers to log in through another app. The Facebook and Spotify adapters use string indexOf against appIds without enforcing an array, so a substring app ID passes the intended equality check. Exploitation requires a provider-issued access token with an app ID that is a substring of the configured string, enabling unauthorized account authentication.

The record

CVE
CVE-2022-39231
Published
Sep 23, 2022
Updated
Apr 23, 2025
Vendor
Parse Platform
Product
Parse Server
Classifications
CWE-287, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 23, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.10.16
  2. Affected versionversion=>= 5.0.0, < 5.2.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Parse Platform · Parse Serverversion=< 4.10.16; version=>= 5.0.0, < 5.2.7

Published CVSS scores

3.7GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
3.7NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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