Contact Form By Supsystic
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Stored cross-site scripting in the Contact Form by Supsystic WordPress plugin (all versions ≤1.10.2) allows unauthenticated attackers to inject persistent malicious scripts via a spoofed IP address header. The exploit chain is notable for its two-stage unauthenticated entry: the plugin's `updateNonce` action is excluded from the permission-check list, granting any unauthenticated caller a valid WordPress nonce; that nonce is then used to submit a contact form with a crafted `X-Forwarded-For` value, which the plugin stores unsanitized and later renders in the admin contacts list. No public exploit has been identified at time of analysis and no KEV listing exists, but the Wordfence advisory includes direct source-code references to the vulnerable code paths.
Unauthenticated cross-site scripting in Contact Form by Supsystic WordPress plugin (all versions before 1.10.0) allows a remote, unauthenticated attacker to inject and execute arbitrary JavaScript in the browsers of site visitors. The CVSS vector confirms a scope change (S:C), meaning the injected script executes in the victim's browser context rather than the server, enabling session hijacking, credential theft, or malicious redirects. No public exploit code or CISA KEV listing has been identified at time of analysis, but the zero-privilege entry point and WordPress deployment scale make this a meaningful patching priority.
Remote code execution in Contact Form by Supsystic plugin for WordPress (all versions ≤1.7.36) allows unauthenticated attackers to execute arbitrary PHP functions and OS commands via Server-Side Template Injection. Attackers exploit the plugin's unsandboxed Twig template engine by injecting malicious Twig expressions through GET parameters in the cfsPreFill functionality, leveraging registerUndefinedFilterCallback() to register arbitrary PHP callbacks. CVSS 9.8 (Critical) with network-accessible, low-complexity attack vector requiring no authentication. EPSS data not provided, but the combination of unauthenticated RCE in a widely-deployed WordPress plugin represents severe real-world risk. No KEV status confirmed at time of analysis.
Unauthenticated authentication bypass in the Contact Form by Supsystic WordPress plugin (versions before 1.10.0) exposes restricted plugin functionality to any remote attacker without credentials. CWE-288 indicates the plugin fails to enforce authentication through an alternate path or channel, allowing unauthorized access to operations that should require valid user context. No active exploitation confirmed by CISA KEV; patch is available as of version 1.10.0 per Patchstack and EUVD reporting.
Stored cross-site scripting in the Contact Form by Supsystic WordPress plugin (all versions ≤1.10.2) allows unauthenticated attackers to inject persistent malicious scripts via a spoofed IP address header. The exploit chain is notable for its two-stage unauthenticated entry: the plugin's `updateNonce` action is excluded from the permission-check list, granting any unauthenticated caller a valid WordPress nonce; that nonce is then used to submit a contact form with a crafted `X-Forwarded-For` value, which the plugin stores unsanitized and later renders in the admin contacts list. No public exploit has been identified at time of analysis and no KEV listing exists, but the Wordfence advisory includes direct source-code references to the vulnerable code paths.
Unauthenticated cross-site scripting in Contact Form by Supsystic WordPress plugin (all versions before 1.10.0) allows a remote, unauthenticated attacker to inject and execute arbitrary JavaScript in the browsers of site visitors. The CVSS vector confirms a scope change (S:C), meaning the injected script executes in the victim's browser context rather than the server, enabling session hijacking, credential theft, or malicious redirects. No public exploit code or CISA KEV listing has been identified at time of analysis, but the zero-privilege entry point and WordPress deployment scale make this a meaningful patching priority.
Remote code execution in Contact Form by Supsystic plugin for WordPress (all versions ≤1.7.36) allows unauthenticated attackers to execute arbitrary PHP functions and OS commands via Server-Side Template Injection. Attackers exploit the plugin's unsandboxed Twig template engine by injecting malicious Twig expressions through GET parameters in the cfsPreFill functionality, leveraging registerUndefinedFilterCallback() to register arbitrary PHP callbacks. CVSS 9.8 (Critical) with network-accessible, low-complexity attack vector requiring no authentication. EPSS data not provided, but the combination of unauthenticated RCE in a widely-deployed WordPress plugin represents severe real-world risk. No KEV status confirmed at time of analysis.
Unauthenticated authentication bypass in the Contact Form by Supsystic WordPress plugin (versions before 1.10.0) exposes restricted plugin functionality to any remote attacker without credentials. CWE-288 indicates the plugin fails to enforce authentication through an alternate path or channel, allowing unauthorized access to operations that should require valid user context. No active exploitation confirmed by CISA KEV; patch is available as of version 1.10.0 per Patchstack and EUVD reporting.