CVE-2023-5134Network attack vector

Authenticated user-metadata disclosure via unrestricted shortcode

Published Sep 23, 2023 · Updated Apr 8, 2026

Information disclosure in Easy Registration Forms 2.1.1 and earlier allows remote authenticated users to read arbitrary sensitive user metadata. The erforms_user_meta shortcode handler returns requested user metadata without restricting which keys a subscriber can retrieve. A valid WordPress account with subscriber-level capability is sufficient; the reported consequence is unauthorized read access to WordPress user metadata.

CVSS severity4.3
Medium
EPSS probability0.44%
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 Easy Registration Forms 2.1.1 and earlier allows remote authenticated users to read arbitrary sensitive user metadata. The erforms_user_meta shortcode handler returns requested user metadata without restricting which keys a subscriber can retrieve. A valid WordPress account with subscriber-level capability is sufficient; the reported consequence is unauthorized read access to WordPress user metadata.

The record

CVE
CVE-2023-5134
Published
Sep 23, 2023
Updated
Apr 8, 2026
Vendor
Easy Registration Forms
Product
Easy Registration Forms
Classifications
CWE-200, T1213.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 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 <=2.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Easy Registration Forms · Easy Registration Formsversion=0 <=2.1.1

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213.006Data from Information Repositories: Databases

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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