CVE-2026-9004

WP-CRM System <= 3.4.6 - Authenticated (Contributor+) Exposure of Sensitive Information via 'contact_id' Parameter

2026-09-21 19:26

Strategic Overview

Status: Unpatched
Affected Plugin: WP-CRM System – Manage Clients and Projects
Affected Version: <= 3.4.6
CVSS: 4.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2026-9004

View all WP-CRM System – Manage Clients and Projects vulnerabilities

At a glance

CVE-2026-9004 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the WP-CRM System WordPress plugin, affecting versions <= 3.4.6. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Contributor level or above. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed September 2026, reported by Teerachai Somprasong.

Vulnerability Overview

The WP-CRM System – Manage Clients and Projects plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.4.6 via the 'contact_id' parameter. This makes it possible for authenticated attackers, with contributor-level access and above, to extract full names, email addresses, phone numbers, mobile numbers, fax numbers, and physical address information of arbitrary CRM contact records by enumerating the contact_id parameter.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

WP-CRM System <= 3.4.6 carries this weakness at contact_id, and reaching it takes an account at Contributor level or above. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. No fixed build of this plugin is recorded for WP-CRM System yet, so installs running <= 3.4.6 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

No patched version is recorded yet, so there is nothing to update to; WordSec's vulnerability alerts flag this record the moment that changes.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-9004 https://www.wordfence.com/threat-intel/vulnerabilities/id/f506a9bd-2501-4437-938d-2833fc8545a9 https://nvd.nist.gov/vuln/detail/CVE-2026-9004

Related records

Other vulnerabilities in WP-CRM System – Manage Clients and Projects

CVSS Vector

4.3

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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