Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In versions prior to 4.10.15, or 5.0.0 and above prior to 5.2.6, a user can write to the session object of another user if the session object ID is known. For example, an attacker can assign the session object to their own user by writing to the user field and then read any custom fields of that session object. Note that assigning a session to another user does not usually change the privileges of either of the two users, and a user cannot assign their own session to another user. This issue is patched in version 4.10.15 and above, and 5.2.6 and above. To mitigate this issue in unpatched versions add a beforeSave trigger to the _Session class and prevent writing if the requesting user is different from the user in the session object.
CVE-2022-39225
This medium-severity CVE scores 4.3 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 55% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EPSS
- 32.9%
- KEV
- Not listed
Published
September 23, 2022
Last Modified
November 21, 2024
References (2)
- security-advisories@githubhttps://github.com/parse-community/parse-server/security/advisories/GHSA-6w4q-23cf-j9jp
- af854a3a-2127-422b-91ae-364da2661108https://github.com/parse-community/parse-server/security/advisories/GHSA-6w4q-23cf-j9jp
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| parse-server | — | 5.2.6 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 45× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-25 14:53 UTCEG score recompute
- 2026-05-24 16:51 UTCEPSS rescore
Frequently asked(5)
What is CVE-2022-39225?
When was CVE-2022-39225 disclosed?
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What is the CVSS score of CVE-2022-39225?
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Dependency Blast Radius
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