CVE-2025-47542 is a Cross-Site Request Forgery (CSRF) vulnerability identified in the Michael Simple calendar plugin for Elementor, a popular WordPress page builder. This vulnerability affects versions up to and including 1.6.5. CSRF vulnerabilities allow an attacker to trick an authenticated user into submitting a forged request to the vulnerable application, potentially causing unintended actions without the user's consent. In this case, the vulnerability could allow an attacker to perform unauthorized actions within the Simple calendar plugin context by exploiting the trust of the authenticated user’s browser session. The CVSS 3.1 base score is 4.3 (medium severity), with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), unchanged scope (S:U), no confidentiality impact (C:N), low integrity impact (I:L), and no availability impact (A:N). This means the attack can be launched remotely without authentication but requires the user to interact (e.g., click a malicious link). The integrity impact is low, suggesting that the attacker could modify some data or settings within the calendar plugin but not cause severe damage or data leakage. No known exploits are currently reported in the wild, and no patches are linked yet, indicating that mitigation may rely on vendor updates or user-side controls. The vulnerability is classified under CWE-352, which is a common web application security weakness related to CSRF attacks.

For European organizations using WordPress sites with the Michael Simple calendar plugin integrated via Elementor, this vulnerability poses a risk of unauthorized modification of calendar data or settings. While the integrity impact is low, such unauthorized changes could disrupt business operations, event scheduling, or public information dissemination, potentially damaging organizational reputation or causing operational inefficiencies. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to exploit it. European organizations with public-facing websites or intranet portals that rely on this plugin are particularly at risk. The absence of confidentiality and availability impacts reduces the risk of data breaches or service outages, but integrity compromises can still have significant business consequences. Additionally, compliance with European data protection regulations (e.g., GDPR) may be affected if unauthorized changes lead to incorrect or misleading information being published or if personal data is indirectly impacted.

1. Immediate mitigation should include disabling or removing the Michael Simple calendar plugin until a security patch is released by the vendor. 2. Monitor official vendor channels and security advisories for patches addressing CVE-2025-47542 and apply updates promptly. 3. Implement Web Application Firewall (WAF) rules to detect and block suspicious CSRF attempts targeting the plugin endpoints. 4. Educate users and administrators about the risks of phishing and social engineering attacks that could trigger CSRF exploits, emphasizing cautious behavior with unsolicited links. 5. Employ security plugins or WordPress configurations that enforce CSRF tokens for form submissions and AJAX requests, if possible, as a compensating control. 6. Regularly audit and review user permissions and roles within WordPress to minimize the impact scope if an account is compromised. 7. Conduct security testing on the affected sites to detect any unauthorized changes or suspicious activities related to the calendar plugin.