CVE-2021-41559
Medium
Published: 28 June 2022
Published
28 June 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score
0.0035
57.8th percentile
Risk Priority
13
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-41559 is a medium-severity XML Entity Expansion (CWE-776) vulnerability in Silverstripe Silverstripe. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 42.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-6007
Vulnerability details
Silverstripe silverstripe/framework 4.8.1 has a quadratic blowup in Convert::xml2array() that enables a remote attack via a crafted XML document.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
silverstripe
silverstripe
≤ 4.10.9
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.