What’s Vulnerable › Vulnerabilities

CVE-2023-5615: Skype Legacy Buttons <= 3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-20 · updated 2026-06-17
• Weakness: CWE-79

Description

The Skype Legacy Buttons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'skype-status' shortcode in all versions up to, and including, 3.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for 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.

Affected products

• ravanh Skype Legacy Buttons: through 3.1

References

• https://plugins.trac.wordpress.org/browser/skype-online-status/tags/3.1/skype-classes.php#L316
• https://www.wordfence.com/threat-intel/vulnerabilities/id/914bcc8f-fecd-450e-b2a7-0989b7a0dd4c?source=cve
• https://plugins.trac.wordpress.org/browser/skype-online-status/tags/3.1/skype-classes.php#L316
• https://www.wordfence.com/threat-intel/vulnerabilities/id/914bcc8f-fecd-450e-b2a7-0989b7a0dd4c?source=cve

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