What is CVE-2021-47954?

CVE-2021-47954 is a high-severity vulnerability in Layerbb, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-05-16.

How severe is CVE-2021-47954?

High severity. CVSS v3 base score is 8.2 out of 10.

SQL Injection in Layerbb

CVE-2021-47954

LayerBB 1.1.4 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the search_query parameter. Attackers can send POST requests to /search.php with malic…

Vulnerability class: SQL Injection

EPSS: 0.001 (24.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Layerbb — versions 1.1.4

Weakness classification (CWE)

CWE-89 — SQL Injection

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2021-47954?: CVE-2021-47954 is a high-severity vulnerability in Layerbb, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-05-16.
How severe is CVE-2021-47954?: High severity. CVSS v3 base score is 8.2 out of 10.