WP Block and Stop Bad Bots < 6.88 - Unauthenticated SQLi

published 2022-03-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11982

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.6%; EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits: 0; none known

The Block Bad Bots WordPress plugin before 6.88 does not properly sanitise and escape the User Agent before using it in a SQL statement to record logs, leading to an SQL Injection issue

Patch / fix

fixed in 1

stopbadbots block_and_stop_bad_bots 6.88

Exploit prediction

1.61% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wpscan.com https://wpscan.com/vulnerability/e00b2946-15e5-4458-9b13-2e272630a36f referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

Unknown Block Bad Bots and Stop Bad Bots Crawlers and Spiders and Anti Spam Protection

Classification

Weakness

CWE-89 Improper Neutralization of Special Elements used in an SQL Command

Technology feeds

WordPress rss critical rss

References

wpscan.com /vulnerability/e00b2946-15e5-4458-9b13-2e272630a36f
exploit, third-party-advisory

Sources

CVE List CVE-2021-25070
NVD CVE-2021-25070

Fencer Vulns 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.

Summary