CVE-2020-5421
Improper Input Validation in Spring Framework
6.5
MEDIUM
CVSS 3.1
EPSS 63.8%
Description
In Spring Framework versions 5.2.0 - 5.2.8, 5.1.0 - 5.1.17, 5.0.0 - 5.0.18, 4.3.0 - 4.3.28, and older unsupported versions, the protections against RFD attacks from CVE-2015-5211 may be bypassed depending on the browser used through the use of a jsessionid path parameter.
How to fix CVE-2020-5421
To remediate CVE-2020-5421, upgrade the affected package to a fixed version below.
- —upgrade to 4.3.30-1 or later
- —upgrade to 5.2.9 or later
Is CVE-2020-5421 being exploited?
Likely — EPSS is 63.8%, placing CVE-2020-5421 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (2)
- from 0, < 4.3.30-1
- >= 5.2.0, < 5.2.9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N |