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CVE-2025-11880: SM CountDown Widget plugin for WordPress: Malicious Scripts Injected via Shortcode

CVE-2025-11880 · published 1 year ago

Summary

The SM CountDown Widget plugin for WordPress has a security flaw that allows attackers to inject malicious scripts into pages. This could happen if an authenticated user with contributor-level access or higher edits a page using the plugin's smcountdown shortcode. You should update to a version of the plugin that fixes this issue to protect your site.

Original advisory text

The SM CountDown Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's smcountdown shortcode in versions less than, or equal to, 1.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker partial control

Severity

6.4 Medium

Exploitation

<1% chance of attack within 30 days

Type

CWE-79Cross-site Scripting (XSS)

Timeline

Published22 Oct 2025

Updated29 Oct 2026

First seen7 Mar 2026

Sources

CVE-2025-11880 · NVD

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