PT-2021-16260 · WordPress · Pdf.Js Viewer

Apple502J · Published 2021-12-06 · Updated 2021-12-06 · CVE-2021-24759

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: PDF.js Viewer WordPress plugin versions prior to 2.0.2

Description: The issue concerns the PDF.js Viewer WordPress plugin, where certain shortcode and Gutenberg Block attributes are not properly escaped. This could allow users with a role as low as Contributor to perform Cross-Site Scripting attacks.

Recommendations: For versions prior to 2.0.2, update to version 2.0.2 or later to resolve the issue. As a temporary workaround, consider restricting the use of shortcodes and Gutenberg Blocks to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24759

Affected Products

Pdf.Js Viewer

References · 4

• 🔥 https://wpscan.com/vulnerability/38274ef2-5100-4669-9544-a42346b6727d · Exploit
• https://osv.dev/vulnerability/CVE-2021-24759 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24759 · Security Note
• https://t.me/cibsecurity/33382 · Telegram Post