EUVD-2026-43286
GHSA-qq2h-g46x-whfp
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Network form submission is unauthenticated (AV:N, PR:N), but admin must view the stored entry to trigger deserialization (UI:R, AC:H); limited impact without a confirmed gadget chain (C:L/I:L/A:L).
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Lifecycle Timeline
5DescriptionCVE.org
The Database for Contact Form 7, WPforms, Elementor forms WordPress plugin before 1.5.2 does not restrict the PHP classes allowed when unserializing an attacker-supplied form-field value, allowing unauthenticated users to inject arbitrary PHP objects that are instantiated when an administrator views the stored entry. This is an incomplete fix of CVE-2025-7384 and CVE-2026-2599, whose deserialization paths were hardened while the entry-editor file-field path was missed.
AnalysisAI
PHP object injection in the 'Database for Contact Form 7, WPforms, Elementor forms' WordPress plugin (all versions before 1.5.2) permits unauthenticated attackers to embed malicious serialized PHP objects via the entry-editor file-field path, which are instantiated server-side when an administrator views the stored form entry. This is an incomplete remediation of two prior CVEs (CVE-2025-7384 and CVE-2026-2599) - earlier patches hardened other deserialization paths within the same plugin while this specific code route was overlooked. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target site must be running the 'Database for Contact Form 7, WPforms, Elementor forms' plugin in a version prior to 1.5.2, with at least one publicly accessible form (Contact Form 7, WPForms, or Elementor Forms) configured to have submissions captured by the plugin. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS 3.1 base score of 5.0 (Medium) with vector AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L accurately reflects the two-stage exploitation requirement: AC:H acknowledges that administrator interaction (UI:R) is necessary to trigger the stored payload, which is a genuine dependency outside attacker control. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker submits a contact form on the target WordPress site with a crafted serialized PHP object embedded in the file-field input; the plugin stores this value unsanitized in the database. When a site administrator subsequently opens the entry editor to review the submission - a routine administrative task - the plugin deserializes the stored file-field value, instantiating the attacker's PHP object and invoking its magic methods, which may execute arbitrary code server-side depending on gadget chains available in the WordPress installation. … |
| Remediation | The primary fix is to update the 'Database for Contact Form 7, WPforms, Elementor forms' plugin to version 1.5.2 or later via the WordPress plugin repository; this is the vendor-released patch that closes the entry-editor file-field deserialization path. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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