PT-2021-16047 · WordPress · Shortcodes Ultimate

Apple502J · Published 2021-09-20 · Updated 2021-09-28 · CVE-2021-24525

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 Shortcodes Ultimate WordPress plugin versions prior to 5.10.2

Description The issue allows users with Contributor roles to perform stored XSS via shortcode attributes. The plugin is inconsistent in its handling of shortcode attributes, with some escaping and most not, and certain attributes are insecure by design, such as the onclick attribute of the [su button] shortcode.

Recommendations For versions prior to 5.10.2, update to version 5.10.2 or later to resolve the issue. As a temporary workaround, consider restricting the use of shortcode attributes, especially those that are insecure by design, to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24525

Affected Products

Shortcodes Ultimate

References · 4

• 🔥 https://wpscan.com/vulnerability/7f5659bd-50c3-4725-95f4-cf88812acf1c · Exploit
• https://osv.dev/vulnerability/CVE-2021-24525 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24525 · Security Note
• https://t.me/cibsecurity/29096 · Telegram Post