SSRF in Html2pdf Project
CVE-2021-45394
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/spipu/html2pdf (Product, Third Party Advisory)
- www.synacktiv.com/sites/default/files/2022-01/html2pdf_ssrf_deserialization.pdf (Exploit, Third Party Advisory)
- github.com/spipu/html2pdf/blob/master/CHANGELOG.md (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2021-45394?
- CVE-2021-45394 is a high-severity vulnerability in Html2pdf Project, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2022-01-18.
- How severe is CVE-2021-45394?
- High severity. CVSS v3 base score is 8.8 out of 10.