What is CVE-2021-25070?

CVE-2021-25070 is a critical-severity vulnerability in Stopbadbots Block And Stop Bad Bots, classified under SQL Injection. CVSS score: 9.8/10. Published 2022-03-28.

How severe is CVE-2021-25070?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-25070 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SQL Injection in Stopbadbots Block And Stop Bad Bots

CVE-2021-25070

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

Vulnerability class: SQL Injection

Published 2022-03-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (75.0th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Stopbadbots Block And Stop Bad Bots
Block Bad Bots And Stop Crawlers Spiders Anti Spam Protection — versions 6.88

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/e00b2946-15e5-4458-9b13-2e272630a36f (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-25070?: CVE-2021-25070 is a critical-severity vulnerability in Stopbadbots Block And Stop Bad Bots, classified under SQL Injection. CVSS score: 9.8/10. Published 2022-03-28.
How severe is CVE-2021-25070?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-25070 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.