PT-2021-15868 · WordPress · Smooth Scroll Page Up/Down Buttons

M0Ze + 1 · Published 2021-06-01 · Updated 2021-06-11 · CVE-2021-24331

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Smooth Scroll Page Up/Down Buttons WordPress plugin versions prior to 1.4

Description The issue concerns the improper sanitization and validation of settings, such as psb distance, psb buttonsize, and psb speed, which were only validated client-side. This could allow high-privilege users, like administrators, to set XSS payloads in these settings.

Recommendations For versions prior to 1.4, update to version 1.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the plugin's settings to minimize the risk of exploitation. Avoid using the parameters psb distance, psb buttonsize, and psb speed in the affected settings until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24331

Affected Products

Smooth Scroll Page Up/Down Buttons

References · 5

• 🔥 https://wpscan.com/vulnerability/2c7ca586-def8-4723-b779-09d7f37fa1ab · Exploit
• 🔥 https://m0ze.ru/vulnerability/[2021-04-24]-[WordPress]-[CWE-79]-Smooth-Scroll-Page-UpDown-Buttons-WordPress-Plugin-v1.3.txt · Exploit
• https://osv.dev/vulnerability/CVE-2021-24331 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24331 · Security Note
• https://m0ze.ru/vulnerability/%5B2021-04-24%5D-%5BWordPress%5D-%5BCWE-79%5D-Smooth-Scroll-Page-UpDown-Buttons-WordPress-Plugin-v1.3.txt · Note