CVE-2021-39307

Public Exploit

Description

PDFTron's WebViewer UI 8.0 or below renders dangerous URLs as hyperlinks in supported documents, including JavaScript URLs, allowing the execution of arbitrary JavaScript code.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.69% Top 30%
Vendor Advisory pdftron.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.pdftron.com/webviewer/ product vendor advisory
https://research.nccgroup.com/2021/09/14/technical-advisory-pdftron-javascript-urls-allowed-in-webviewer-ui-cve-2021-39307/ exploit third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-39307?
CVE-2021-39307 has been scored as a medium severity vulnerability.
How to fix CVE-2021-39307?
To fix CVE-2021-39307, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-39307 being actively exploited in the wild?
It is possible that CVE-2021-39307 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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