CVE-2023-23924
CRITICALEPSS 88th pctlDescription
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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H
Exploit Intelligence
Elevated risk: more likely to be exploited than 88% of all known CVEs.
References
Related Vulnerabilities
Other CWE-551 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2021-34429 | Medium | 5.3 | 99% | - | Fix |
| CVE-2021-28164 | Medium | 5.3 | 82% | - | Fix |
| CVE-2021-28165 | High | 7.5 | 54% | - | Fix |
| CVE-2021-32777 | High | 8.6 | 3.3% | - | Fix |
| CVE-2026-44575 | High | 7.5 | 1.6% | - | Fix |
| CVE-2026-33186 | High | 8.1 | 1.6% | - | Fix |
Common questions
How do I fix CVE-2023-23924?
No published fix for CVE-2023-23924 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2023-23924 being actively exploited?
Not that we know of. CVE-2023-23924 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 3.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 88% of all scored CVEs.
How severe is CVE-2023-23924?
CVE-2023-23924 has a CVSS v3 base score of 10.0, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2023-23924
Markdown
[](https://tridentstack.com/cve/CVE-2023-23924)HTML
<a href="https://tridentstack.com/cve/CVE-2023-23924"><img src="https://tridentstack.com/cve/badge/CVE-2023-23924.svg" alt="CVE-2023-23924"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.