VULNERABILITY INTELLIGENCE

CVE-2021-22118

CVSS score7.8 HIGH
EPSS probability0.38%
CISA KEVNot currently listed
Published2021-05-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

In Spring Framework, versions 5.2.x prior to 5.2.15 and versions 5.3.x prior to 5.3.7, a WebFlux application is vulnerable to a privilege escalation: by (re)creating the temporary storage directory, a locally authenticated malicious user can read or modify files that have been uploaded to the WebFlux application, or overwrite arbitrary files with multipart request data.

Weakness classification

  • CWE-269: Improper Privilege Management
  • CWE-668: Exposure of Resource to Wrong Sphere

Primary references