CVE-2024-5541Network attack vector

Unauthenticated reCAPTCHA bypass via unchecked option writes

Published Jun 18, 2024 · Updated Apr 8, 2026

Missing authorization in VowelWeb Ibtana 1.2.3.3 and earlier allows remote attackers to alter site reCAPTCHA keys through an AJAX request. The ibtana_visual_editor_register_ajax_json_endpont handler accepts request values and writes them to reCAPTCHA options without checking the caller's capabilities. No account or user interaction is required, and replacing the configured keys permits protections that rely on those options to be bypassed.

CVSS severity5.3
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in VowelWeb Ibtana 1.2.3.3 and earlier allows remote attackers to alter site reCAPTCHA keys through an AJAX request. The ibtana_visual_editor_register_ajax_json_endpont handler accepts request values and writes them to reCAPTCHA options without checking the caller's capabilities. No account or user interaction is required, and replacing the configured keys permits protections that rely on those options to be bypassed.

The record

CVE
CVE-2024-5541
Published
Jun 18, 2024
Updated
Apr 8, 2026
Vendor
VowelWeb
Product
Ibtana – WordPress Website Builder
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 18, 2024CVE 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 <=1.2.3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

VowelWeb · Ibtana – WordPress Website Builderversion=0 <=1.2.3.3

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-862Missing Authorization
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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