CVE-2021-3902

CRITICAL

Dompdf < 2.0.0 - XXE

Title source: rule
STIX 2.1

Description

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.

Scores

CVSS v3 9.8
EPSS 0.0509
EPSS Percentile 89.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-611
Status published
Products (2)
dompdf/dompdf 0 - 2.0.0Packagist
dompdf_project/dompdf < 2.0.0
Published Nov 15, 2024
Tracked Since Feb 18, 2026