What’s Vulnerable › Vulnerabilities

CVE-2026-85657: Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors <= 4.15.0 - Authenticated (Author+) Stored Cross-Site Scripting via 'profile_fields_user_email_value_prefix' Parameter

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-15 · updated 2026-09-15
• Weakness: CWE-79

Description

The Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘profile_fields_user_email_value_prefix’ parameter in all versions up to, and including, 4.15.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user clicks on a link.

Affected products

• publishpress Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors: through 4.15.0

References

• https://plugins.trac.wordpress.org/browser/publishpress-authors/tags/4.15.0/src/modules/author-boxes/author-boxes.php#L2019
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d4cc9537-879c-4c12-8b76-60241b7a3420?source=cve

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