CVE-2026-104738

Description

The Advanced Form Integration — Connect Forms to 300+ Apps plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.10.2 via deserialization of untrusted input . 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. Exploitation requires that an administrator has previously configured at least one active NexForms integration (status=1) in the plugin's database table; in the free tier, only POST parameter keys containing the substrings 'name', 'email', 'first', or 'last' are routed to the vulnerable normalizer.

Overview

State: PUBLISHED
Assigner (CNA): Wordfence
CVSS severity: HIGH
CVSS score: 8.1 / 10
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Effective score: 8.1 / 10 HIGH source: CNA overview
CWE(s): CWE-502
Reserved: 2026-10-02
Published: 2026-11-07 08:25 UTC
Last updated: 2026-11-07 08:25 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/104xxx/CVE-2026-104738.json
Linked Threat: CVE-2026-104738 — Advanced Form Integration <= 2.10.2 - Unauthenticated PHP Object Injection via $_POST Parameters

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-11-07 09:17:11 UTC
NVD last modified: 2026-11-07 09:17:12 UTC
NVD CVSS v3.1: 8.1 / 10 HIGH source: security@wordfence.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 2.2 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0045 (probability of exploitation in next 30 days)
EPSS percentile: 39.05% vs all CVEs — higher = more likely to be exploited, as of 2026-11-07

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-118997
Assigner: Wordfence
Published: Nov 7, 2026, 8:25:30 AM
Updated: Nov 7, 2026, 8:25:30 AM
EUVD base score (CVSS 3.1): 8.1 / 10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.4500
Vendors: Nasirahmed
Products: Advanced Form Integration — Connect Forms to 300+ Apps (0 ≤2.10.2)
Aliases: GHSA-xqcq-7gq5-86v8

ENISA description: The Advanced Form Integration — Connect Forms to 300+ Apps plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.10.2 via deserialization of untrusted input . 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. Exploitation requires that an administrator has previously configured at least one active NexForms integration (status=1) in the plugin's database table; in the free tier, only POST parameter keys containing the substrings 'name', 'email', 'first', or 'last' are routed to the vulnerable normalizer.

EUVD references (4)

Affected products (1)

Vendor	Product	Versions	Platforms
nasirahmed	Advanced Form Integration — Connect Forms to 300+ Apps	`0` (affected)	—

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

MITRE references (4) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (4)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.9.0/includes/triggers/nexforms/nexforms.php#L220 security@wordfence.com
https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.9.0/includes/triggers/nexforms/nexforms.php#L457 security@wordfence.com
https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.9.0/includes/triggers/nexforms/nexforms.php#L508 security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/dbea3356-2fc1-4511-9767-e560b7c4f0a8?source=cve security@wordfence.com

Indicators (1)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
cve	`CVE-2026-104738`	no local data	2026-11-06 20:19 UTC

Remediations (1)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Wordfence remediation: Advanced Form Integration — Connect Forms to 300+ Apps

Wordfence

Update to version 2.10.3, or a newer patched version

2026-11-06 20:19 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-104738.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Advanced Form Integration \u2014 Connect Forms to 300+ Apps",
          "vendor": "nasirahmed",
          "versions": [
            {
              "lessThanOrEqual": "2.10.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Wordfence PRISM"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Advanced Form Integration \u2014 Connect Forms to 300+ Apps plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.10.2 via deserialization of untrusted input . 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. Exploitation requires that an administrator has previously configured at least one active NexForms integration (status=1) in the plugin's database table; in the free tier, only POST parameter keys containing the substrings 'name', 'email', 'first', or 'last' are routed to the vulnerable normalizer."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "CWE-502 Deserialization of Untrusted Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-07T08:25:30.967Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/dbea3356-2fc1-4511-9767-e560b7c4f0a8?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.9.0/includes/triggers/nexforms/nexforms.php#L508"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.9.0/includes/triggers/nexforms/nexforms.php#L457"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/advanced-form-integration/tags/2.9.0/includes/triggers/nexforms/nexforms.php#L220"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-10-02T12:08:52.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-11-06T20:03:55.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Advanced Form Integration <= 2.10.2 - Unauthenticated PHP Object Injection via $_POST Parameters"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-104738",
    "datePublished": "2026-11-07T08:25:30.967Z",
    "dateReserved": "2026-10-02T11:53:33.141Z",
    "dateUpdated": "2026-11-07T08:25:30.967Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}