CVE-2021-38555

An XML external entity (XXE) injection vulnerability exists in Apache Any23 StreamUtils.java

CRITICAL
9.1
CVSS Score
Published: September 11, 2021 at 11:05 AM UTC
Updated: June 17, 2026 at 04:02 AM UTC
1 product affected across 1 vendorANY23

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Severity
CRITICAL9.1
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.5Apache Any23 ≤ v < 2.5
Affected range stops below 2.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-611

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