VULNERABILITY INTELLIGENCE
CVE-2021-38555
CVSS score9.1 CRITICAL
EPSS probability2.75%
CISA KEVNot currently listed
Published2021-09-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Description
An XML external entity (XXE) injection vulnerability was discovered in the Any23 StreamUtils.java file and is known to affect Any23 versions < 2.5. XML external entity injection (also known as XXE) is a web security vulnerability that allows an attacker to interfere with an application's processing of XML data. It often allows an attacker to view files on the application server filesystem, and to interact with any back-end or external systems that the application itself can access.
Weakness classification
- nvd@nist.gov: CWE-611
Primary references
- security@apache.org — Mailing List, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Vendor Advisory