PT-2023-31107 · WordPress · Iframe+1

Alex Thomas + 2 · Published 2023-10-19 · Updated 2023-10-27 · CVE-2023-4919

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions iframe plugin for WordPress versions up to, and including, 4.6

Description The issue is related to Stored Cross-Site Scripting via the iframe shortcode due to insufficient input sanitization and output escaping. This allows authenticated attackers with contributor-level permission and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Recommendations For versions up to, and including, 4.6, update to version 4.7 to fully patch the issue. As a temporary workaround, consider restricting access to the iframe shortcode for users with contributor-level permission and above until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2023-4919

Affected Products

Wordpress

Iframe

References · 8

• 🔥 https://plugins.trac.wordpress.org/browser/iframe/tags/4.5/iframe.php#L28 · Exploit
• 🔥 https://plugins.trac.wordpress.org/browser/iframe/tags/4.5/iframe.php#L40 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-4919 · Security Note
• https://osv.dev/vulnerability/CVE-2023-4919 · Vendor Advisory
• https://wordfence.com/threat-intel/vulnerabilities/id/3706deed-55f2-4dfb-bfed-7a14872cd15a?source=cve · Patch
• https://plugins.trac.wordpress.org/changeset/2970787/iframe#file4 · Patch
• https://twitter.com/CVEnew/status/1715259863683498122 · Twitter Post
• https://t.me/cibsecurity/72678 · Telegram Post