CVE-2023-0085Network attack vector

Automated form submission via unchecked CAPTCHA response

Published Mar 2, 2023 · Updated Apr 8, 2026

reCAPTCHA bypass in Roxnor MetForm 3.2.1 and earlier allows remote attackers to submit protected WordPress forms with invalid CAPTCHA data. The form-submission handler fails to verify the submitted CAPTCHA value on the server before accepting the entry. A public form with reCAPTCHA enabled is required, and bypassed validation permits automated form submissions rather than broader site access.

CVSS severity5.3
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

reCAPTCHA bypass in Roxnor MetForm 3.2.1 and earlier allows remote attackers to submit protected WordPress forms with invalid CAPTCHA data. The form-submission handler fails to verify the submitted CAPTCHA value on the server before accepting the entry. A public form with reCAPTCHA enabled is required, and bypassed validation permits automated form submissions rather than broader site access.

The record

CVE
CVE-2023-0085
Published
Mar 2, 2023
Updated
Apr 8, 2026
Vendor
Roxnor
Product
MetForm
Classifications
CWE-693, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 2, 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 <=3.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Roxnor · MetFormversion=0 <=3.2.1

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
T1190Exploit Public-Facing Application

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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