CVE-2025-8316
BaseFortify
Publication date: 2025-09-11
Last updated on: 2025-09-11
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| lucas_moreira | certifica_wp | 3.1 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability in the Certifica WP WordPress plugin is a Stored Cross-Site Scripting (XSS) issue affecting the 'evento' parameter in all versions up to 3.1. Due to insufficient input sanitization and output escaping, authenticated users with Contributor-level access or higher can inject malicious scripts into pages. These scripts execute whenever any user accesses the infected page, potentially compromising user interactions and site security.
How can this vulnerability impact me? :
This vulnerability can allow attackers with Contributor-level access to inject arbitrary scripts into the website, which will execute in the browsers of users who visit the affected pages. This can lead to unauthorized actions such as stealing user credentials, session hijacking, defacement, or spreading malware. It compromises the integrity and trustworthiness of the website and can affect all users who access the injected content.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by identifying attempts to inject malicious scripts via the 'evento' parameter in the Certifica WP plugin's shortcode usage. Since the vulnerability involves Stored Cross-Site Scripting (XSS) by authenticated users with Contributor-level access or higher, monitoring HTTP requests that include the 'evento' parameter with suspicious or script-like content is key. On the system, you can check WordPress logs or database entries for unexpected script tags or encoded payloads in the 'evento' parameter. Network detection could involve inspecting HTTP POST or GET requests to the WordPress site for unusual 'evento' parameter values. Specific commands depend on your environment, but examples include using grep on web server logs to find 'evento' parameter usage, e.g., `grep -i 'evento=' /var/log/apache2/access.log` or using tools like `curl` to test injection by sending crafted requests with script payloads in the 'evento' parameter. Additionally, scanning the WordPress installation for the presence of the vulnerable Certifica WP plugin version (up to 3.1) can help detect exposure. [2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include disabling or removing the Certifica WP plugin from your WordPress installation, as it has been closed and removed from download availability pending a full security review. Restrict Contributor-level and higher user permissions to trusted users only, as the vulnerability requires authenticated access at that level. Monitor and sanitize inputs related to the 'evento' parameter if you maintain custom code or overrides. Applying a Web Application Firewall (WAF) rule to block or sanitize suspicious payloads targeting the 'evento' parameter can also help. Finally, keep your WordPress and plugins updated and monitor official sources for a patched version of the Certifica WP plugin before re-enabling it. [1]