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CVE-2021-3902

Nov. 19, 2024, 5:12 p.m.

CVSS Score

9.8 / 10

Products Impacted

Vendor Product Versions
dompdf_project
  • dompdf
  • *

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.

Weaknesses

CWE-611
Improper Restriction of XML External Entity Reference

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

CWE ID: 611

Date

Published: Nov. 15, 2024, 11:15 a.m.

Last Modified: Nov. 19, 2024, 5:12 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security@huntr.dev

CPEs

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a dompdf_project dompdf / / / / / / / /

CVSS Data

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score
9.8
Exploitability Score
3.9
Impact Score
5.9
Base Severity
CRITICAL
CVSS Vector String

The CVSS vector string provides an in-depth view of the vulnerability metrics.

View Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/ security@huntr.dev

https://huntr.com/ security@huntr.dev