A HIGH-severity vulnerability identified as CVE-2023-33999 has been published on June 11, 2026 with a CVSS base score of 7.1. This security advisory provides a detailed breakdown of the vulnerability, its potential impact, weakness classification, and actionable steps to protect your systems.
Vulnerability Details
CVE ID: CVE-2023-33999
Severity: HIGH
CVSS Score: 7.1
Published: June 11, 2026
Weakness (CWE): CWE-79
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Confidentiality Impact | Low |
| Integrity Impact | Low |
| Availability Impact | Low |
Technical Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in WPVibes WP Mail Log allows DOM-Based XSS. This issue affects WP Mail Log: from n/a through 1.0.2.
Potential Impact
If exploited, this high-severity vulnerability could allow an attacker to cause significant damage to affected systems. Organizations running affected software should treat this as a priority remediation item.
Recommended Action
No official patch is available yet. Until one is released:
- Monitor the official NVD page and vendor channels for patch announcements.
- Restrict access to the affected system or service where possible.
- Apply network-level mitigations such as firewall rules or WAF policies.
- Enable logging and alerting for anomalous activity related to this vulnerability.
- Review your incident response plan in case of active exploitation.
References
Related Security Advisories
- [HIGH] CVE-2025-15654 — CVSS 7.1 (June 3, 2026) — HIGH / CVSS 7.1
- [HIGH] CVE-2025-11262 — CVSS 7.2 (May 29, 2026) — HIGH / CVSS 7.2
- [HIGH] CVE-2026-10721 — CVSS 8.4 (June 10, 2026) — HIGH / CVSS 8.4
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