CVE-2026-4078

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/bd034f43-370c-4ad9-ad02-4cae0f48d781?source=cve

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3507724%40iteras&new=3507724%40iteras&sfp_email=&sfph_mail=

https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L561

https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L551

https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L527

https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L519

https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L511

https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L489

https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L561

https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L551

https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L527

https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L519

https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L511

https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L489

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS