CVE-2021-39307 - Vulnerability Details - OpenCVE

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.

Published: 2021-09-15

Score: 6.1 Medium

EPSS: 1.1% Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:pdftron:webviewer_ui:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-25668	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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.01116.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://research.nccgroup.com/2021/09/14/technical-advisory-pdftron-javascript-urls-allowed-in-webviewer-ui-cve-2021-39307/
https://www.pdftron.com/webviewer/

History

No history.

Subscriptions

Pdftron Webviewer Ui

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-09-15T12:47:05.000Z

Updated: 2024-08-04T02:06:41.810Z

Reserved: 2021-08-20T00:00:00.000Z

Link: CVE-2021-39307

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-09-15T13:15:08.120

Modified: 2026-06-17T04:03:30.947

Link: CVE-2021-39307

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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