EUVD-2026-25407
GHSA-rfwp-57wg-5x36
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
4DescriptionCVE.org
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.
AnalysisAI
Stored Cross-Site Scripting in ITERAS WordPress plugin version 1.8.2 and earlier allows authenticated attackers with Contributor-level privileges to inject arbitrary JavaScript code via shortcode attributes (iteras-ordering, iteras-signup, iteras-paywall-login, iteras-selfservice) due to insufficient input sanitization in the combine_attributes() function. When a user accesses a page containing the malicious shortcode, the injected script executes in their browser context, enabling session hijacking, credential theft, or malware distribution. No public exploit code or active exploitation has been identified at time of analysis.
Technical ContextAI
The vulnerability exists in the combine_attributes() function within the ITERAS plugin's public-facing PHP code, which dynamically builds JavaScript objects by concatenating shortcode attribute values directly into JavaScript string literals without escaping. Specifically, the function uses double-quoted string interpolation (pattern: '"'.$key.'": "'.$value.'"') to populate JavaScript objects rendered within <script> tags. This is a classic broken output encoding scenario (CWE-79: Improper Neutralization of Input During Web Page Generation). An attacker exploiting Contributor-level access can inject a double-quote character to break out of the JavaScript string context, allowing arbitrary JavaScript injection. The vulnerability spans four shortcodes across multiple code locations (lines 489, 511, 519, 527, 551, 561), indicating systemic use of the unsafe concatenation pattern.
RemediationAI
Update the ITERAS plugin to the patched version released by the vendor (exact patched version number not specified in provided data - consult the Wordfence advisory and WordPress plugin repository for the latest secure release). The fix should involve applying proper JavaScript escaping to shortcode attribute values before concatenation into JavaScript literals, or refactoring to use JSON.stringify() or equivalent safe serialization. If immediate patching is not feasible, disable or restrict usage of the vulnerable shortcodes (iteras-ordering, iteras-signup, iteras-paywall-login, iteras-selfservice) on public-facing pages. Additionally, audit all Contributor-level user accounts and limit the role to trusted individuals only, reducing the attack surface. Review WordPress access logs and page content for evidence of injected <script> tags or encoded JavaScript payloads in shortcode attributes as indicators of prior exploitation. Implement a Web Application Firewall (WAF) rule to block HTTP requests containing shortcode attributes with unescaped double-quote sequences followed by JavaScript keywords (e.g., 'alert(', 'fetch(', 'location='), though this is a temporary measure pending patch deployment.
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External POC / Exploit Code
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