CVE-2025-57990 is a Missing Authorization vulnerability (CWE-862) identified in the solwininfotech Blog Designer plugin, affecting versions up to 3.1.8. This vulnerability arises from incorrectly configured access control mechanisms, allowing users with limited privileges (requiring some level of authentication but not administrative rights) to perform actions or access resources beyond their authorization scope. The vulnerability does not require user interaction and can be exploited remotely over the network (AV:N). The CVSS 3.1 base score is 5.4, indicating a medium severity level. The impact primarily affects integrity and availability, with no direct confidentiality loss reported. Specifically, an attacker with low privileges could manipulate or disrupt blog content or functionality, potentially leading to defacement, unauthorized content changes, or denial of service conditions within the affected WordPress environment. No known exploits are currently reported in the wild, and no patches have been linked yet, suggesting that mitigation may require vendor updates or manual access control reviews. Given the nature of the vulnerability, it is critical for administrators to verify and enforce proper authorization checks within the Blog Designer plugin to prevent privilege escalation or unauthorized modifications.

For European organizations using the solwininfotech Blog Designer plugin, this vulnerability could lead to unauthorized modifications of publicly visible blog content, undermining the integrity of corporate communications and brand reputation. Disruption of blog services could also affect customer engagement and internal communications if the blog is used for knowledge sharing. While confidentiality is not directly impacted, the integrity and availability issues could facilitate misinformation or denial of service scenarios. Organizations in sectors with strict content governance or regulatory compliance (e.g., finance, healthcare, government) may face increased risk if unauthorized content changes lead to misinformation or non-compliance with disclosure requirements. The medium severity suggests that while the threat is not critical, it should not be ignored, especially in environments where the plugin is widely used and integrated with other systems.

1. Immediate review and tightening of access control policies within the Blog Designer plugin settings, ensuring that only authorized roles have permissions to modify blog content or settings. 2. Restrict plugin access to trusted users and regularly audit user roles and permissions to detect any privilege creep. 3. Monitor logs for unusual activity related to blog content changes or plugin configuration modifications. 4. Apply any vendor patches or updates as soon as they become available; in the absence of patches, consider disabling or removing the plugin temporarily if it is not critical. 5. Implement web application firewall (WAF) rules to detect and block suspicious requests targeting the plugin endpoints. 6. Educate administrators and content managers on the risks of privilege escalation and the importance of least privilege principles. 7. Conduct penetration testing focused on authorization bypass scenarios to validate the effectiveness of implemented controls.