What is the severity of CVE-2021-45394?

CVE-2021-45394 is considered a critical vulnerability due to the potential for remote code execution through deserialization of arbitrary data.

How do I fix CVE-2021-45394?

To fix CVE-2021-45394, upgrade Spipu HTML2PDF to version 5.2.4 or later.

What types of attacks are possible with CVE-2021-45394?

Attackers can exploit CVE-2021-45394 to inject malicious <link> tags that can trigger deserialization of arbitrary data.

Which versions of HTML2PDF are affected by CVE-2021-45394?

CVE-2021-45394 affects all versions of HTML2PDF prior to 5.2.4.

How can I determine if my system is vulnerable to CVE-2021-45394?

You can determine if your system is vulnerable by checking if you are using a version of HTML2PDF older than 5.2.4.

Vulnerability/
CVE-2021-45394

high

8.8

CWE

502 918

18/1/2022

4/8/2024

CVE-2021-45394: SSRF

First published: Tue Jan 18 2022(Updated: )

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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Chm2pdf	<5.2.4

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-45394?
CVE-2021-45394 is considered a critical vulnerability due to the potential for remote code execution through deserialization of arbitrary data.
How do I fix CVE-2021-45394?
To fix CVE-2021-45394, upgrade Spipu HTML2PDF to version 5.2.4 or later.
What types of attacks are possible with CVE-2021-45394?
Attackers can exploit CVE-2021-45394 to inject malicious <link> tags that can trigger deserialization of arbitrary data.
Which versions of HTML2PDF are affected by CVE-2021-45394?
CVE-2021-45394 affects all versions of HTML2PDF prior to 5.2.4.
How can I determine if my system is vulnerable to CVE-2021-45394?
You can determine if your system is vulnerable by checking if you are using a version of HTML2PDF older than 5.2.4.

agent/type
collector/mitre-cve
source/MITRE
agent/references
agent/weakness
agent/author
agent/severity
agent/last-modified-date
agent/event
agent/description
agent/first-publish-date
agent/source
agent/softwarecombine
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/html2pdf project
canonical/chm2pdf

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Frequently Asked Questions

What is the severity of CVE-2021-45394?
CVE-2021-45394 is considered a critical vulnerability due to the potential for remote code execution through deserialization of arbitrary data.
How do I fix CVE-2021-45394?
To fix CVE-2021-45394, upgrade Spipu HTML2PDF to version 5.2.4 or later.
What types of attacks are possible with CVE-2021-45394?
Attackers can exploit CVE-2021-45394 to inject malicious <link> tags that can trigger deserialization of arbitrary data.
Which versions of HTML2PDF are affected by CVE-2021-45394?
CVE-2021-45394 affects all versions of HTML2PDF prior to 5.2.4.
How can I determine if my system is vulnerable to CVE-2021-45394?
You can determine if your system is vulnerable by checking if you are using a version of HTML2PDF older than 5.2.4.