Auth bypass in Parse-Community Parse-Server
CVE-2020-5251
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.008 (56.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Parse-Community Parse-Server — versions < 4.1.0
- Parseplatform Parse-Server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/parse-community/parse-server/security/advisories/GHSA-h4mf-75hf-67w4 (Third Party Advisory)
- github.com/parse-community/parse-server/commit/3a3a5eee5ffa48da1352423312cb767d… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-5251?
- CVE-2020-5251 is a high-severity vulnerability in Parse-Community Parse-Server, classified under Improper Authorization. CVSS score: 7.7/10. Published 2020-03-04.
- How severe is CVE-2020-5251?
- High severity. CVSS v3 base score is 7.7 out of 10.
- Is CVE-2020-5251 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.