CVE-2022-2913Public exploitNetwork attack vector

Login CAPTCHA bypass via spoofed IP headers

Published Sep 16, 2022 · Updated Jun 3, 2025

Authentication bypass in Login No Captcha reCAPTCHA before 1.7 allows remote attackers to skip login CAPTCHA checks via spoofed IP headers. LoginNoCaptcha::get_ip_address() trusts HTTP_CLIENT_IP, HTTP_X_FORWARDED_FOR, and similar client-controlled headers and compares the result with the configured IP allow list. Exploitation requires a known allow-listed address and valid login credentials; the flaw removes CAPTCHA protection but does not bypass password authentication.

CVSS severity4.3
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Login No Captcha reCAPTCHA before 1.7 allows remote attackers to skip login CAPTCHA checks via spoofed IP headers. LoginNoCaptcha::get_ip_address() trusts HTTP_CLIENT_IP, HTTP_X_FORWARDED_FOR, and similar client-controlled headers and compares the result with the configured IP allow list. Exploitation requires a known allow-listed address and valid login credentials; the flaw removes CAPTCHA protection but does not bypass password authentication.

The record

CVE
CVE-2022-2913
Published
Sep 16, 2022
Updated
Jun 3, 2025
Vendor
Robert Peake
Product
Login No Captcha reCAPTCHA
Classifications
CWE-639, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 2025Record 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=1.7 <1.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Robert Peake · Login No Captcha reCAPTCHAversion=1.7 <1.7

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
4.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

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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