CVE-2023-0689Network attack vector

Subscriber-level form-data disclosure via unchecked entry ID

Published Aug 31, 2023 · Updated Apr 8, 2026

Information disclosure in Roxnor MetForm 3.3.1 and earlier allows remote authenticated users to read submitters' first names via mf_first_name. The render_first_name shortcode handler accepts the id query parameter as a form-entry post ID and reads metform_entries__form_data without verifying ownership. Subscriber-level access is sufficient to retrieve first-name data from arbitrary submissions; no integrity or availability impact is reported.

CVSS severity4.3
Medium
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Roxnor MetForm 3.3.1 and earlier allows remote authenticated users to read submitters' first names via mf_first_name. The render_first_name shortcode handler accepts the id query parameter as a form-entry post ID and reads metform_entries__form_data without verifying ownership. Subscriber-level access is sufficient to retrieve first-name data from arbitrary submissions; no integrity or availability impact is reported.

The record

CVE
CVE-2023-0689
Published
Aug 31, 2023
Updated
Apr 8, 2026
Vendor
Roxnor
Product
MetForm
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Roxnor · MetFormversion=0 <=3.3.1

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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