CVE-2025-5841
BaseFortify
Publication date: 2025-06-13
Last updated on: 2025-06-16
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
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 ACF Onyx Poll WordPress plugin is a Stored Cross-Site Scripting (XSS) issue affecting versions up to 1.1.9. It occurs because the plugin does not properly sanitize or escape input in the 'class' parameter, allowing authenticated users with Contributor-level access or higher to inject malicious scripts. These scripts are stored and executed whenever any user accesses the affected page, potentially compromising user security. [1]
How can this vulnerability impact me? :
This vulnerability can allow attackers with Contributor-level access to inject malicious scripts into pages, which will execute in the browsers of users who visit those pages. This can lead to unauthorized actions such as stealing session cookies, defacing content, or performing actions on behalf of users without their consent, thereby compromising the security and integrity of the website and its users. [1]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by checking if the ACF Onyx Poll plugin version installed is 1.1.9 or earlier, as these versions are vulnerable. Additionally, inspecting pages or posts that use the plugin's shortcode for any injected scripts in the 'class' parameter can help identify exploitation. Since the vulnerability involves stored XSS via shortcode attributes, reviewing the plugin's shortcode usage in the WordPress admin or scanning the database for suspicious script tags in poll-related meta fields may be useful. Specific commands are not provided in the resources. [1]
What immediate steps should I take to mitigate this vulnerability?
The immediate mitigation step is to update the ACF Onyx Poll plugin to version 1.2.0 or later, as this version includes the fix that sanitizes shortcode attributes to prevent stored XSS. If updating is not immediately possible, restricting Contributor-level and above users from adding or editing polls or shortcodes until the update is applied can reduce risk. Additionally, monitoring and cleaning any injected scripts in existing polls is advisable. [1]