High severity8.8NVD Advisory· Published Jan 18, 2022· Updated Jun 17, 2026
CVE-2021-45394
CVE-2021-45394
Description
An issue was discovered in Spipu HTML2PDF before 5.2.4. Attackers can trigger deserialization of arbitrary data via the injection of a malicious tag in the converted HTML document.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
spipu/html2pdfPackagist | < 5.2.4 | 5.2.4 |
Affected products
3- Spipu/HTML2PDFdescription
Patches
Vulnerability mechanics
References
7- www.synacktiv.com/sites/default/files/2022-01/html2pdf_ssrf_deserialization.pdfnvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-6m93-343m-3jrcghsaADVISORY
- github.com/spipu/html2pdf/blob/master/CHANGELOG.mdnvdRelease NotesThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-45394ghsaADVISORY
- github.com/spipu/html2pdf/commit/100a4d509abf8550765cf0e0da83e83abb422585ghsaWEB
- github.com/spipu/html2pdf/commit/2e6bab9a2afe9cfd4d3c3038da64d8ad74e41d7fghsaWEB
- github.com/spipu/html2pdf/releases/tag/v5.2.4ghsaWEB
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