EUVD-2026-33892
GHSA-q97r-wcrr-7v9h
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
2DescriptionCVE.org
The Easy Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'add_to_cart' shortcode in all versions up to and including 1.8. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the ectp_add_to_cart() function uses sanitize_text_field() on shortcode attributes like 'itemid', 'product_name', 'product_desc', 'product_qty', and 'price' before inserting them into double-quoted HTML attributes. While sanitize_text_field() strips HTML tags, it does not escape double quote characters, allowing an attacker to break out of the HTML attribute context and inject arbitrary event handlers. 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 the Easy Cart WordPress plugin (all versions up to and including 1.8) permits authenticated Contributor-level users to inject persistent JavaScript payloads via the 'add_to_cart' shortcode. The vulnerability originates in the ectp_add_to_cart() function at plugin.php lines 280-287, where shortcode attributes such as 'product_name', 'product_desc', 'itemid', 'product_qty', and 'price' are processed with sanitize_text_field()-a function that strips HTML tags but does not escape double-quote characters-before being embedded in double-quoted HTML attributes. This allows attribute context breakout and arbitrary event handler injection that executes against any visitor loading the affected page. No public exploit code or CISA KEV listing has been identified at time of analysis.
Technical ContextAI
The affected component is the Easy Cart WordPress plugin (vendor: zeshanb, CPE: cpe:2.3:a:zeshanb:easy_cart:*:*:*:*:*:*:*:*), a shopping cart shortcode plugin. The root cause maps to CWE-79 (Improper Neutralization of Input During Web Page Generation), specifically a context-mismatch sanitization error: WordPress's sanitize_text_field() is designed for plain-text fields and correctly strips HTML tags, but it does not perform HTML attribute encoding. When user-controlled shortcode attribute values are inserted directly into double-quoted HTML attributes without applying esc_attr() or equivalent output encoding, an attacker can inject a double-quote character to break out of the attribute boundary and append arbitrary event handlers (e.g., onmouseover, onerror). Source code references pinpoint the vulnerable insertions at plugin.php lines 263, 280, and 283-287 across both the trunk and the 1.8 tagged release.
RemediationAI
No vendor-released patch has been identified at time of analysis - the Wordfence advisory and WordPress plugin trac references both point to the vulnerable 1.8 codebase without indicating an available fixed release. Site administrators should disable the Easy Cart plugin until a patched version is published by the vendor (zeshanb). As a compensating control, audit and restrict Contributor-level user accounts: remove or demote untrusted Contributor accounts, since this role is the minimum required for exploitation. WordPress sites with the Wordfence plugin installed should ensure the WAF rule for this CVE is active (rule ID associated with Wordfence advisory 73615729-c32a-45f7-b2d8-5c978370e18c), which may block shortcode-based injection attempts - note this is a detection/blocking control, not a fix, and should not substitute for patching. If the plugin cannot be disabled, consider restricting shortcode usage to trusted roles via a capability management plugin, with the trade-off that this may break intended e-commerce functionality. Monitor the WordPress plugin repository and Wordfence feed for an updated release.
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External POC / Exploit Code
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