Description
The ITERAS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple shortcodes (iteras-ordering, iteras-signup, iteras-paywall-login, iteras-selfservice) in all versions up to and including 1.8.2. This is due to insufficient input sanitization and output escaping in the combine_attributes() function. The function directly concatenates shortcode attribute values into JavaScript code within <script> tags using double-quoted string interpolation (line 489: '"'.$key.'": "'.$value.'"') without any escaping. An attacker can break out of the JavaScript string context by including a double-quote character in a shortcode attribute value and inject arbitrary JavaScript. 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 accesses an injected page.
References10
- plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/ite…
- plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/ite…
- plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/ite…
- plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/ite…
- plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/ite…
- plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/ite…
- plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-p…
- plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-p…
- plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-p…
- plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-p…
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: 18 · as of 13 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.