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Fencer Intel
medium 5.3

CVE-2022-4534 json

Limit Login Attempts (Spam Protection) <= 5.3 - IP Address Spoofing to Protection Mechanism Bypass

published 2y ago modified 4mo ago also EUVD-2022-51869

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

The Limit Login Attempts (Spam Protection) plugin for WordPress is vulnerable to IP Address Spoofing in versions up to, and including, 5.3. This is due to insufficient restrictions on where the IP Address information is being retrieved for request logging and login restrictions. Attackers can supply the X-Forwarded-For header with with a different IP Address that will be logged and can be used to bypass settings that may have blocked out an IP address or country from logging in.

Patch / fix

  • wp-buy login_protection_-_limit_failed_login_attempts 5.4

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2y ago

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

  • wp-buy Limit Login Attempts (Spam Protection)
  • wp-buy limit_login_attempts

Classification

Weakness
  • CWE-348 Use of Less Trusted Source
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.