Vulnerability · Published Apr 4, 2022 · Assigned by WPScan

CVE-2022-1165Blackhole for Bad Bots < 3.3.2 - Arbitrary IP Address Blocking via IP Spoofing

Critical 9.1

In plain English

A critical-severity authorization bypass via user-controlled key in Blackhole for Bad Bots from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities).

Severity (CVSS NVD)9.1Critical

Exploit odds (30 days)1.7%top 23.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

The Blackhole for Bad Bots WordPress plugin before 3.3.2 uses headers such as CF-CONNECTING-IP, CLIENT-IP etc to determine the IP address of requests hitting the blackhole URL, which allows them to be spoofed. This could result in blocking arbitrary IP addresses, such as legitimate/good search engine crawlers / bots. This could also be abused by competitors to cause damage related to visibility in search engines, can be used to bypass arbitrary blocks caused by this plugin, block any visitor or even the administrator and even more.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Blackhole for Bad Bots	3.3.2 – before 3.3.2

Weakness: CWE-639

References

https://wpscan.com/vulnerability/10d85913-ea8c-4c2e-a32e-fa61cf191710 x_refsource_MISC
https://plugins.trac.wordpress.org/changeset/2666486 x_refsource_CONFIRM