CVE-2025-13527
CSRF Vulnerability in xShare WordPress Plugin Allows Settings Reset
Publication date: 2026-01-07
Last updated on: 2026-01-07
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| rainastudio | xshare | to 1.0.1 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-352 | The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability in the xShare WordPress plugin (up to version 1.0.1) is a Cross-Site Request Forgery (CSRF) issue. It occurs because the plugin's reset function ('xshare_plugin_reset') lacks nonce validation, which means it does not verify that a request to reset the plugin's settings is legitimate. As a result, an attacker can trick an authenticated site administrator into clicking a malicious link that causes the plugin's settings to be reset without their consent.
How can this vulnerability impact me? :
This vulnerability allows an unauthenticated attacker to reset the xShare plugin's settings by tricking a site administrator into performing an action such as clicking a crafted link. This could lead to loss of customized plugin configurations, potentially disrupting website functionality or user experience. However, it does not directly lead to data disclosure or site takeover.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by checking for the presence of the 'rs_plugin_reset' GET parameter being triggered on the WordPress site running the xShare plugin version 1.0.1 or earlier. Since the vulnerability involves a Cross-Site Request Forgery (CSRF) on the 'xshare_plugin_reset()' function, monitoring HTTP requests for unauthorized or suspicious GET requests containing 'rs_plugin_reset' targeting the admin interface could indicate exploitation attempts. Specific commands to detect this might include using web server logs or network traffic analysis tools to search for requests like: curl -I 'http://example.com/wp-admin/admin.php?rs_plugin_reset=1' or using grep on access logs: grep 'rs_plugin_reset' /var/log/apache2/access.log However, no explicit detection commands or tools are provided in the resources. [2, 3]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include updating the xShare plugin to a version later than 1.0.1 where the nonce validation on the 'xshare_plugin_reset()' function is implemented to prevent CSRF attacks. If an update is not available, temporarily disabling the plugin or restricting access to the admin interface to trusted IPs can reduce risk. Additionally, educating site administrators to avoid clicking on suspicious links that could trigger the reset function is advised. Since the vulnerability arises from missing nonce validation, applying a patch that adds nonce checks to the reset function is the definitive fix.