WordPress Core Interpretation Conflict Vulnerability

CVE-2026-63030

July 31, 2026 · CISA · Severity: CRITICAL

WordPress Core has been identified with a critical interpretation conflict vulnerability, tracked as CVE-2026-63030, which could enable attackers to execute SQL Injection and Remote Code Execution (RCE) attacks. This vulnerability can be chained with another known issue, CVE-2026-60137, amplifying its potential impact. The Cybersecurity and Infrastructure Security Agency (CISA) added this vulnerability to its Known Exploited Vulnerabilities catalog on July 21, 2026, noting that it is actively being exploited in the wild. This vulnerability affects all users of WordPress Core, the foundational software powering millions of websites globally. If exploited, attackers could gain unauthorized access to databases, manipulate sensitive information, or execute malicious code on affected systems. Given WordPress's widespread use, this poses a significant risk to website owners, administrators, and end-users. Immediate patching and mitigation are critical to prevent potential breaches and ensure the security of WordPress-powered sites. CISA urges organizations to prioritize addressing this vulnerability to safeguard their digital assets.

WordPress Core contains an interpretation conflict vulnerability that could allow an attacker to perform SQL Injection and achieve Remote Code Execution. This vulnerability can be chained with CVE-2026-60137. Vendor: WordPress Product: Core CISA Date Added: 2026-07-21 CVE: CVE-2026-63030 This vulnerability is actively exploited in the wild according to CISA Known Exploited Vulnerabilities catalog.

Key Takeaways

CVE-2026-63030 is actively exploited in the wild and has been added to the CISA Known Exploited Vulnerabilities catalog.
The vulnerability allows SQL injection attacks, which can lead to data theft, authentication bypass, or remote code execution.
CISA BOD 26-04 requires remediation within the specified due date — apply vendor mitigations promptly.
WordPress Core: WordPress Core contains an interpretation conflict vulnerability that could allow an attacker to perform SQL Injection and achieve Remote Code Execution.