CVE-2021-3902criticalCWE-611

CVE-2021-3902: critical vulnerability in dompdf/dompdf

Improper Restriction of XML External Entity Reference in dompdf/dompdf

Published · Updated

Follow this CVE+ Monitor dompdf/dompdf+ Monitor dompdf/dompdf

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.8epss 1.0%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
dompdf · dompdf/dompdf
Related CVEs — dompdf/dompdf

In the same product, most dangerous first.

CVE-2021-3838CRITICALPHAR Deserialization in dompdf/dompdfEPSS 1.4%CVE-2022-2400MEDIUMExternal Control of File Name or Path in dompdf/dompdfEPSS 1.2%CVE-2022-0085LOWServer-Side Request Forgery (SSRF) in dompdf/dompdfEPSS 1.0%