CVE-2021-41559

MEDIUM

Silverstripe Framework 4.8.1 - Denial of Service via XML Entity Expansion in Convert::xml2array()

Title source: llm
STIX 2.1

Description

Silverstripe silverstripe/framework 4.8.1 has a quadratic blowup in Convert::xml2array() that enables a remote attack via a crafted XML document.

References (3)

Core 3
Core References
Not Applicable, Vendor Advisory x_refsource_misc
https://www.silverstripe.org/download/security-releases/
Release Notes, Vendor Advisory x_refsource_misc
https://github.com/silverstripe/silverstripe-framework/releases
Release Notes, Vendor Advisory x_refsource_misc
https://www.silverstripe.org/download/security-releases/cve-2021-41559

Scores

CVSS v3 6.5
EPSS 0.0085
EPSS Percentile 53.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE
CWE-776
Status published
Products (2)
silverstripe/framework 4.0.0 - 4.10.9Packagist
silverstripe/silverstripe < 4.10.9
Published Jun 28, 2022
Tracked Since Feb 18, 2026