Description
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.
References5
- plugins.trac.wordpress.org/browser/toocheke-companion/tags/2.11…
- plugins.trac.wordpress.org/browser/toocheke-companion/tags/2.3/…
- plugins.trac.wordpress.org/browser/toocheke-companion/tags/2.3/…
- plugins.trac.wordpress.org/browser/toocheke-companion/tags/2.3/…
- www.wordfence.com/threat-intel/vulnerabilities/id/1bf78bc1-55d7…
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 27 · as of 11 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.