CVE-2026-59943
MEDIUM
6.3
CVSS 4.0
Description
Dompdf is an HTML to PDF converter for PHP. In versions 3.15 and prior, if a malicious actor can supply unrestricted content for rendering by Dompdf they can utilize the SVG rendering functionality to leak filesystem information when rendering PDF files using image references within a data-URI encoded SVG document. Using an <image> element inside a data-URI embedded SVG, an attacker can attempt to embed other files via the href or xlink:href attributes. When processing a file that does not exist (e.g. file:///DOESNOTEXIST), dompdf behaves differently than it does when accessing a file or directory that actually exists on the filesystem. This issue has been fixed in version 3.16.
Metadata
Severity & Metrics
6.3
MEDIUM CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products (1)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| dompdf | dompdf | — | < 3.1.6 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-209 | cna | CWE-209: Generation of Error Message Containing Sensitive Information |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 6.3 | MEDIUM | 4.0 | cna | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
References (3)
- https://github.com/dompdf/dompdf/security/advisories/GHSA-j8qw-6jw8-r297 https://github.com/dompdf/dompdf/security/advisories/GHSA-j8qw-6jw8-r297
- https://github.com/dompdf/dompdf/commit/6a58996865db05d8fede748507e50ac4b8c5bfd0 https://github.com/dompdf/dompdf/commit/6a58996865db05d8fede748507e50ac4b8c5bfd0
- https://github.com/dompdf/dompdf/releases/tag/v3.1.6 https://github.com/dompdf/dompdf/releases/tag/v3.1.6