An issue was discovered in Spipu HTML2PDF before 5.2.4. Attackers can trigger deserialization of arbitrary data via the injection of a malicious <link> tag in the converted HTML document.
https://github.com/spipu/html2pdf/blob/master/CHANGELOG.md
https://github.com/spipu/html2pdf
https://www.synacktiv.com/sites/default/files/2022-01/html2pdf_ssrf_deserialization.pdf
Source: Mitre, NVD
Published: 2022-01-18
Updated: 2026-06-17
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00358