EUVD-2026-39727
GHSA-r26v-75f4-49x2
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Unauthenticated reflected XSS over the network needing a victim click (UI:R); scope changes into the browser/session context (S:C) with the limited C/I/A impact typical of XSS.
Primary rating from Vendor (patchstack).
CVSS VectorVendor: patchstack
Lifecycle Timeline
1DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in SureCart <= 4.3.2 versions.
AnalysisAI
Reflected cross-site scripting in the SureCart WordPress e-commerce plugin (versions 4.3.2 and earlier) lets unauthenticated remote attackers inject browser-executed script by luring a victim to a crafted link. Because the CVSS scope is changed (S:C), the injected payload can act in the security context of the WordPress session, enabling theft of admin session data or actions performed on the victim's behalf. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV, but Patchstack has cataloged it as a confirmed reflected XSS.
Technical ContextAI
SureCart is a SaaS-backed e-commerce/checkout plugin for WordPress used to sell products, subscriptions, and donations. The root cause is CWE-79 (Improper Neutralization of Input During Web Page Generation): user-controllable request input is reflected back into an HTML response without proper output encoding or sanitization, so attacker-supplied markup is parsed and executed by the victim's browser. No CPE strings were supplied in the intelligence, so the affected component maps to the WordPress plugin 'surecart' at versions up to and including 4.3.2 as identified by the Patchstack advisory rather than to NVD CPE data.
RemediationAI
Upgrade SureCart to a release later than 4.3.2 - the advisory frames 4.3.2 as the last vulnerable version, so administrators should apply the next available patched release from the WordPress plugin repository and verify the installed version after updating; no exact fixed version number was included in the provided data, so confirm the patched version against the vendor/Patchstack advisory. Because this is reflected XSS requiring a crafted link, interim compensating controls include placing a Web Application Firewall rule in front of the site to block requests containing script markup in the reflected parameter (Patchstack offers virtual patching for this) and adding a restrictive Content-Security-Policy that disallows inline script execution, with the trade-off that a strict CSP can break legitimate inline scripts used by themes or other plugins. Reference: https://patchstack.com/database/wordpress/plugin/surecart/vulnerability/wordpress-surecart-plugin-4-3-2-reflected-cross-site-scripting-xss-vulnerability
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External POC / Exploit Code
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