CVE-2025-63071 is a vulnerability identified in the averta Shortcodes and extra features plugin for the Phlox WordPress theme, affecting versions up to 2.17.12. The issue involves the insertion of sensitive information into data sent by the plugin, allowing attackers to retrieve embedded sensitive data without authentication or user interaction. The vulnerability is exploitable remotely over the network (AV:N) with low attack complexity (AC:L), and does not require privileges (PR:N) or user interaction (UI:N). The impact is limited to confidentiality (C:L), with no effect on integrity or availability. This suggests that sensitive data such as tokens, credentials, or personal information may be inadvertently exposed through shortcode outputs or AJAX responses generated by the plugin. No known exploits have been reported in the wild, and no official patches have been linked yet. The vulnerability was reserved in late October 2025 and published in December 2025. Given the plugin's role in enhancing the Phlox theme's functionality, the exposure of sensitive data could lead to information leakage that may facilitate further attacks or privacy violations. The lack of authentication requirements increases the risk of automated scanning and exploitation attempts.

For European organizations, this vulnerability poses a risk of sensitive data leakage from websites using the Phlox theme with the averta Shortcodes plugin. Such data exposure could include user information, API keys, or configuration details embedded in shortcode outputs. This leakage can undermine user privacy, violate GDPR regulations, and potentially aid attackers in crafting targeted attacks or gaining unauthorized access. Organizations relying on WordPress for corporate websites, e-commerce, or customer portals may face reputational damage and compliance issues if sensitive data is exposed. The medium severity rating reflects that while the vulnerability does not directly compromise system integrity or availability, the confidentiality breach can have significant consequences, especially in regulated industries or sectors handling personal data. The absence of known exploits reduces immediate risk but does not eliminate the threat, as attackers may develop exploits once details become widely known.

European organizations should immediately audit their WordPress installations to identify the use of the Phlox theme with the averta Shortcodes and extra features plugin, particularly versions up to 2.17.12. Until an official patch is released, administrators should consider disabling or removing the plugin to prevent data leakage. Review shortcode configurations and outputs to ensure no sensitive information is embedded or exposed. Implement web application firewalls (WAFs) with rules to detect and block suspicious requests targeting shortcode endpoints. Monitor web server logs for unusual access patterns or data exfiltration attempts. Stay informed through vendor advisories and security mailing lists to apply patches promptly once available. Additionally, conduct regular security assessments and penetration tests focusing on WordPress plugins and themes to identify similar vulnerabilities proactively. For compliance, document mitigation steps and potential exposures to support GDPR and other regulatory requirements.