Improper Restriction of External Entities (XXE) Vulnerability

CVE-2021-3902
9.8CRITICAL

Key Information

Vendor
DomPDF
Status
DomPDF/domPDF
Vendor
CVE Published:
15 November 2024

Summary

An improper restriction of external entities (XXE) vulnerability in dompdf/dompdf's SVG parser allows for Server-Side Request Forgery (SSRF) and deserialization attacks. This issue affects all versions prior to 2.0.0. The vulnerability can be exploited even if the isRemoteEnabled option is set to false. It allows attackers to perform SSRF, disclose internal image files, and cause PHAR deserialization attacks.

Affected Version(s)

dompdf/dompdf < 2.0.0

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Risk change from: null to: 9.8 - (CRITICAL)

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database
.