EUVD-2025-17183Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Matches provided vector; PR:L due to contributor access, UI:R required.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in mva7 The Holiday Calendar allows Stored XSS. This issue affects The Holiday Calendar: from n/a through 1.18.2.1.
AnalysisAI
Stored cross-site scripting (XSS) in The Holiday Calendar WordPress plugin up to version 1.18.2.1 allows authenticated attackers with contributor-level access or higher to inject arbitrary web scripts into pages. These scripts execute when other users view the affected page, potentially leading to session hijacking or defacement. No public exploit or active exploitation has been identified, and the EPSS score is low (0.05%).
Technical ContextAI
The vulnerability is a stored cross-site scripting (XSS) issue in the WordPress plugin 'The Holiday Calendar', which provides a calendar display for holidays. The root cause is improper neutralization of user-supplied input during web page generation (CWE-79). The plugin fails to sanitize or escape input before storing it, allowing attackers to inject malicious scripts that are later rendered in the browser of other users. The affected product is identified via CPE as a WordPress plugin, and the vulnerability is present in all versions up to and including 1.18.2.1.
RemediationAI
Update The Holiday Calendar plugin to version 1.18.2.2 or later, which contains the fix. The vendor advisory from Patchstack confirms the patched version. As a workaround, restrict contributor-level access to trusted users only, or disable the plugin if not essential. Note that limiting user roles may reduce functionality for legitimate content creators.
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External POC / Exploit Code
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