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Critical

Unauthenticated PHP Object Injection in Integration for Salesforce and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms

IdentifiersCVE-2026-49109CWE-502· Deserialization of Untrusted Data

CVE-2026-49109 is an unauthenticated PHP Object Injection vulnerability affecting the WordPress plugin "Integration for Salesforce and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms" in versions up to and including 1.4.3. The available information classifies the issue as CWE-502, indicating deserialization of untrusted data. Based on the provided context, the flaw allows attacker-controlled serialized PHP data to be processed by the plugin without authentication. No specific vulnerable function or code path was provided in the source material.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

The vulnerability is remotely exploitable over the network with low attack complexity, requires no privileges, and does not require user interaction. The provided CVSS v3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) indicates high impact to confidentiality, integrity, and availability. Successful exploitation may enable application compromise through PHP object injection, including arbitrary code execution, data manipulation, or other severe impacts, depending on whether suitable gadget chains are present in the target WordPress/PHP environment.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by disabling the vulnerable plugin until an update is available, restricting public access to affected WordPress instances where feasible, and monitoring for suspicious requests targeting plugin functionality that may process serialized input. Additional hardening should include minimizing installed plugins and themes that could provide usable PHP object gadget chains, because exploitability and post-exploitation impact may depend on the presence of such chains.

Remediation

Patch, then assume compromise.

Upgrade the affected plugin, "Integration for Salesforce and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms," to a version newer than 1.4.3 once a fixed release is available. If a vendor patch or updated release has been published, apply it promptly across all affected WordPress instances.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
CRM PerksIntegration For Salesforce And Contact Form 7 Wpforms Elementor Formidable Ninja Formsapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

7 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity6

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-49109
NVD
nvd.nist.gov/vuln/detail/CVE-2026-49109
MITRE CWE · CWE-502
Deserialization of Untrusted Data
patchstack.com
patchstack.com/database/wordpress/plugin/cf7-salesforce/vulnerability/wordpress-integration-for-salesforce-and-contact-form-7-wpforms-elementor-formidable-ninja-forms-plugin-1-4-3-php-object-injection-vulnerability?_s_id=cve