CVE-2021-3902
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductDompdf
PublishedNov 15, 2024
First seenNov 15, 2024
Weakness typeCWE-611XML external entity (XXE)
How to fix
Update
- dompdf_project dompdf2.0.0 or later
- dompdf/dompdf2.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| dompdf_project dompdf | v < 2.0.0 | 2.0.0 |
| dompdf/dompdfPackagist | v < 2.0.0 | 2.0.0 |
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