CVE-2025-11803: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in wpfanyi WPSite Shortcode
The WPSite Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'format' shortcode attribute in the wpsite_y shortcode and the 'before' attribute in the wpsite_postauthor shortcode in all versions up to, and including, 1.2. This is due to insufficient input sanitization and output escaping in error messages. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI Analysis
Technical Summary
The WPSite Shortcode plugin for WordPress contains a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input during web page generation. Specifically, the 'format' shortcode attribute in wpsite_y and the 'before' attribute in wpsite_postauthor lack sufficient sanitization and escaping in error messages, allowing authenticated users with contributor or higher privileges to inject arbitrary scripts. These scripts execute in the context of users visiting the compromised pages, potentially leading to information disclosure or session hijacking. The vulnerability affects all versions up to 1.2. No patch or official fix is currently documented.
Potential Impact
An attacker with contributor-level or higher access can inject persistent malicious scripts into pages via vulnerable shortcode attributes. This can lead to execution of arbitrary JavaScript in the browsers of users who view the infected pages, potentially resulting in information disclosure or other client-side impacts. The vulnerability does not affect availability and requires authentication with limited privileges, reducing but not eliminating risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the WPSite Shortcode plugin if feasible. Monitor official vendor channels for updates or patches addressing this vulnerability.
CVE-2025-11803: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in wpfanyi WPSite Shortcode
Description
The WPSite Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'format' shortcode attribute in the wpsite_y shortcode and the 'before' attribute in the wpsite_postauthor shortcode in all versions up to, and including, 1.2. This is due to insufficient input sanitization and output escaping in error messages. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The WPSite Shortcode plugin for WordPress contains a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input during web page generation. Specifically, the 'format' shortcode attribute in wpsite_y and the 'before' attribute in wpsite_postauthor lack sufficient sanitization and escaping in error messages, allowing authenticated users with contributor or higher privileges to inject arbitrary scripts. These scripts execute in the context of users visiting the compromised pages, potentially leading to information disclosure or session hijacking. The vulnerability affects all versions up to 1.2. No patch or official fix is currently documented.
Potential Impact
An attacker with contributor-level or higher access can inject persistent malicious scripts into pages via vulnerable shortcode attributes. This can lead to execution of arbitrary JavaScript in the browsers of users who view the infected pages, potentially resulting in information disclosure or other client-side impacts. The vulnerability does not affect availability and requires authentication with limited privileges, reducing but not eliminating risk.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the WPSite Shortcode plugin if feasible. Monitor official vendor channels for updates or patches addressing this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-10-15T14:34:38.233Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69202539cf2d47c3899a7b0d
Added to database: 11/21/2025, 8:39:21 AM
Last enriched: 4/9/2026, 8:52:30 PM
Last updated: 5/10/2026, 3:36:46 AM
Views: 57
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