PHP
CVE-2026-2599
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
The Database for Contact Form 7, WPforms, Elementor forms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.4.7 via deserialization of untrusted input in the 'download_csv' function. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
AnalysisAI
PHP Object Injection in Database for CF7/WPforms/Elementor forms WordPress plugin.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Vulnerable form plugin (version ≤1.4.7) installed and active; additional plugin or theme with exploitable POP chain present on WordPress installation; download_csv endpoint accessible to unauthenticated users. Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 9.8. Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Object injection via form data. |
| Remediation | Update. Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all affected WordPress installations running vulnerable plugin versions and disable the CSV download functionality if operationally feasible, or restrict access to authenticated administrators only. …
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