PT-2023-31863 · WordPress · Modal Window

István Márton + 1 · Published 2023-09-25 · Updated 2023-09-29 · CVE-2023-5161

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 The Modal Window plugin for WordPress versions up to, and including, 5.3.5

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

Recommendations For versions up to, and including, 5.3.5, update to a version later than 5.3.5 to resolve the issue. As a temporary workaround, consider restricting the use of shortcodes to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2023-5161

Affected Products

Modal Window

References · 9

• https://plugins.trac.wordpress.org/changeset/2971132/modal-window#file195 · Patch
• https://wordfence.com/threat-intel/vulnerabilities/id/48e2129f-6a2c-45e4-a0cf-7d8d5f563a7f?source=cve · Patch
• https://plugins.trac.wordpress.org/changeset/2971132/modal-window#file196 · Patch
• https://osv.dev/vulnerability/CVE-2023-5161 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-5161 · Security Note
• https://twitter.com/CVEnew/status/1706495300934799423 · Twitter Post
• https://plugins.trac.wordpress.org/browser/modal-window/tags/5.3.5/public/class-public.php#L73 · Note
• https://plugins.trac.wordpress.org/browser/modal-window/tags/5.3.5/public/shortcode.php#L53 · Note
• https://twitter.com/VulmonFeeds/status/1707088593200558212 · Twitter Post