CVE-2025-3774
Published: 17 June 2025
Summary
CVE-2025-3774 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Wordpress (inferred from references). Its CVSS base score is 7.2 (High).
Operationally, ranked in the top 21.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The Wise Chat plugin for WordPress is affected by a stored cross-site scripting vulnerability in all versions through 3.3.4. The flaw stems from insufficient input sanitization and output escaping on the X-Forwarded-For header, which is processed by code such as that referenced in the plugin's WiseChatKicksTab.php file and is tracked under CWE-79.
Unauthenticated remote attackers can supply a crafted header value that is stored and later rendered without proper escaping. Successful exploitation allows arbitrary script execution in the browsers of users who view the affected page, with a CVSS 3.1 score of 7.2 reflecting network attack vector, low complexity, and no required authentication or user interaction.
Public references from Wordfence and the WordPress plugin repository document the vulnerable code paths but do not detail specific patch releases or configuration workarounds beyond the implication that versions after 3.3.4 address the issue.
EPSS remains flat at 0.0117 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-18449
Vulnerability details
The Wise Chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the X-Forwarded-For header in all versions up to, and including, 3.3.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to…
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inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.