High severity · published Jan 18, 2022
CVE-2021-45394
An issue was discovered in Spipu HTML2PDF before 5.2.4
8.8
CVSS
1.6%
EPSS
No
On KEV
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 <link> tag in the converted HTML document.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HT
Html2pdf · Html2pdf Project
before 5.2.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45394
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45394
Product
https://github.com/spipu/html2pdf
Release Notes
https://github.com/spipu/html2pdf/blob/master/CHANGELOG.md
Exploit
https://www.synacktiv.com/sites/default/files/2022-01/html2pdf_ssrf_deserialization.pdf
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6.1
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Cross Site Scripting vulnerability in Spipu HTML2PDF before v.5.2.8 allows a remote attacker to execute arbitrary code via a crafted script to the forms.php