CVE WatchNov 2, 2026

CVE-2026-111592

The Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors plugin for WordPress is vulnerable to Stored C

CVSS

6.4

Medium

EPSS

0.2%

KEV

—

Exploit Today

0-100

Published: Oct 31, 2026 · Last modified: Nov 2, 2026 · CWE-79

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-10-312026-11-07

Technical 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 'name (maps to display_name)' parameter in all versions up to, and including, 4.17.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the attacker's user account to have a mapped author term, which occurs when an administrator has assigned them as a co-author on content or has enabled automatic author term creation for their role — this mapping is not present by default for new users on a stock install.

Official references

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