Attack Vectors

CVE-2026-2025 is a Medium-severity (CVSS 5.3) vulnerability affecting the WordPress plugin Mail Mint – Newsletters, Email Marketing, Automation, WooCommerce Emails, Post Notification, and more (slug: mail-mint) in versions prior to 1.19.5.

The issue is an unauthenticated information disclosure risk, meaning an attacker may not need to log in to your website to attempt to extract sensitive user or configuration data. For organizations using Mail Mint for campaigns, automations, and WooCommerce-related email workflows, this can be particularly relevant because marketing systems often store high-value operational and audience information.

Reference: CVE-2026-2025 record and the public advisory source at Wordfence.

Security Weakness

This vulnerability is categorized as Sensitive Information Exposure in Mail Mint versions up to (but not including) 1.19.5. In practical business terms, this means the plugin may unintentionally make certain information accessible in a way that an outside party can retrieve without authorization.

Because the report indicates the issue can be exploited without authentication, it increases the likelihood of opportunistic scanning and automated attempts against exposed sites. The recommended remediation is straightforward: update Mail Mint to version 1.19.5 or newer, which contains the fix.

Technical or Business Impacts

The primary risk is loss of confidentiality. If sensitive user or configuration data is exposed, potential downstream impacts can include:

Customer and lead data exposure: Depending on what is accessible, this could include information tied to subscriber lists, customer identifiers, or marketing operations data. Even limited exposure can create compliance and reputational issues.

Campaign integrity and brand risk: Configuration details can help attackers better understand your marketing stack, workflows, or site setup. That context can enable more convincing phishing and impersonation attempts targeting your team or customers.

Regulatory and contractual consequences: If exposed data includes personal data, it may trigger internal incident response processes, legal review, and potential notification obligations (depending on jurisdiction and contractual commitments).

Operational disruption and added cost: Even when the vulnerability “only” discloses information (no direct integrity or availability impact is indicated by the CVSS vector), responding can consume significant time across marketing, IT, and compliance teams (triage, audits, customer communication, and tightening controls).

Recommended action: Update the Mail Mint plugin to 1.19.5+ as soon as possible, confirm the update completed successfully, and review access logs and monitoring alerts around the time window prior to patching for unusual unauthenticated requests.

Similar attacks (context): Marketing and email platforms are frequent targets because they touch customer lists and brand communications. For example, Mailchimp has publicly disclosed security incidents impacting customer accounts (Mailchimp security incident (2022), Mailchimp incident update (2023)).