WordPress
CVE-2026-0555
MEDIUM
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
Lifecycle Timeline
2DescriptionCVE.org
The Premmerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'premmerce_wizard_actions' AJAX endpoint in all versions up to, and including, 1.3.20. This is due to missing capability checks and insufficient input sanitization and output escaping on the state parameter. This makes it possible for authenticated attackers, with subscriber level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page (the Premmerce Wizard admin page).
AnalysisAI
The Premmerce WordPress plugin through version 1.3.20 contains a stored cross-site scripting vulnerability in the wizard AJAX endpoint due to inadequate input sanitization and output escaping on the state parameter. Authenticated users with subscriber-level permissions can inject malicious scripts that execute in the admin wizard interface when accessed by other users. No patch is currently available for this medium-severity vulnerability affecting plugin installations.
Technical ContextAI
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Premmerce (WordPress plugin). The Premmerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'premmerce_wizard_actions' AJAX endpoint in all versions up to, and including, 1.3.20. This is due to missing capability checks and insufficient input sanitization and output escaping on the state parameter. This makes it possible for authenticated attackers, with subscriber level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page (the Prem
Affected ProductsAI
Vendor: WordPress. Product: Premmerce (WordPress plugin).
RemediationAI
Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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