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CVE-2023-23924

CRITICAL Exploitation: PoC
10.0
CVSS 3.1
Description
Dompdf is an HTML to PDF converter. The URI validation on dompdf 2.0.1 can be bypassed on SVG parsing by passing `<image>` 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.

Metadata

CVE ID
CVE-2023-23924
State
PUBLISHED
Assigner
GitHub_M
Reserved
2023-01-19 21:12 UTC
Published
2023-01-31 23:54 UTC
Last updated
2025-03-10 21:17 UTC
Primary CWE
CWE-551
CWE-551: Incorrect Behavior Order: Authorization Before Pars…
Vendor / Product
dompdf / dompdf
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
dompdf dompdf — < 2.0.2
Weakness (CWE)
CWESourceDescription
CWE-551 cna CWE-551: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
CVSS scores (1)
ScoreSeverityVersionSourceVector
10.0 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H
References (3)
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