CVE-2026-15604
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
The Toocheke Companion plugin for WordPress up to version 2.10 is vulnerable to Stored Cross-Site Scripting via the 'series_bg_color' post meta field. Insufficient input sanitization and output escaping allow authenticated attackers with contributor-level access and above to inject arbitrary web scripts that execute when an administrator views the series list table.
Risk Assessment
An attacker can execute malicious scripts in the context of an administrator session, potentially leading to account takeover, data theft, or further site compromise.
Recommendation
Update the Toocheke Companion plugin to the latest patched version. Additionally, restrict admin dashboard access to trusted users only.
Original NVD description (English source)
The Toocheke Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.10 via the 'series_bg_color' post meta field. This is due to insufficient input sanitization in the toocheke_series_bg_color_save() function (which stores the raw $_POST value in post meta) and insufficient output escaping in the series admin column rendering (where the stored value is concatenated into a style attribute without esc_attr()). 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, such as an administrator, accesses the series list table in the admin dashboard.