Critical severity10.0NVD Advisory· Published Feb 1, 2023· Updated Jun 17, 2026
CVE-2023-23924
CVE-2023-23924
Description
Dompdf is an HTML to PDF converter. The URI validation on dompdf 2.0.1 can be bypassed on SVG parsing by passing ` tags with uppercase letters. This may lead to arbitrary object unserialize on PHP < 8, through the phar` URL wrapper. An attacker can exploit the vulnerability to call arbitrary URL with arbitrary protocols, if they can provide a SVG file to dompdf. In PHP versions before 8.0.0, it leads to arbitrary unserialize, that will lead to the very least to an arbitrary file deletion and even remote code execution, depending on classes that are available.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
dompdf/dompdfPackagist | < 2.0.2 | 2.0.2 |
Affected products
3- cpe:2.3:a:dompdf_project:dompdf:2.0.1:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- github.com/dompdf/dompdf/commit/7558f07f693b2ac3266089f21051e6b78c6a0c85nvdPatchThird Party AdvisoryWEB
- github.com/dompdf/dompdf/security/advisories/GHSA-3cw5-7cxw-v5qgnvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-3cw5-7cxw-v5qgghsaADVISORY
- github.com/dompdf/dompdf/releases/tag/v2.0.2nvdRelease NotesThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2023-23924ghsaADVISORY
- github.com/FriendsOfPHP/security-advisories/blob/master/dompdf/dompdf/CVE-2023-23924.yamlghsaWEB
News mentions
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