EUVD-2025-17257Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Matches NVD vector; PR:L due to contributor role, 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 CoolHappy The Events Calendar Countdown Addon allows Stored XSS. This issue affects The Events Calendar Countdown Addon: from n/a through 1.4.9.
AnalysisAI
Stored cross-site scripting in The Events Calendar Countdown Addon for WordPress allows authenticated attackers with contributor-level access or higher to inject arbitrary web scripts into event countdown displays. Affects versions up to 1.4.9. No public exploit or active exploitation identified.
Technical ContextAI
This is a stored XSS vulnerability (CWE-79) in a WordPress plugin that adds countdown functionality to The Events Calendar. The plugin fails to sanitize user-supplied input before storing it in the database and later rendering it in web pages. CPE data indicates the affected product is 'countdown-for-the-events-calendar' for WordPress. The vulnerability requires the attacker to have at least Contributor role, and the injected script executes when an administrator or other user views the compromised countdown element.
RemediationAI
Update The Events Calendar Countdown Addon to version 1.5.0 or later, which contains the fix. No workarounds are documented; as a compensating control, restrict the 'Contributor' role or disable the plugin if not essential. The vendor advisory is at the Patchstack link above.
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External POC / Exploit Code
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