CVE-2021-47954

HIGH

LayerBB 1.1.4 SQL Injection via search_query Parameter

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47954. PoCs published by Görkem Haşin.

AI-analyzed exploit summary This exploit demonstrates a SQL injection vulnerability in LayerBB 1.1.4 via the 'search_query' parameter. The payload uses a CASE statement to trigger a boolean-based blind SQLi, confirming the vulnerability.

Description

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 malicious search_query values using CASE WHEN statements to extract sensitive database information.

Exploits (1)

exploitdb WORKING POC
by Görkem Haşin · textwebappsphp
https://www.exploit-db.com/exploits/49593

This exploit demonstrates a SQL injection vulnerability in LayerBB 1.1.4 via the 'search_query' parameter. The payload uses a CASE statement to trigger a boolean-based blind SQLi, confirming the vulnerability.

Classification
Working Poc 90%
Attack Type
Sqli
Complexity
Trivial
Reliability
Reliable
Target: LayerBB 1.1.4
No auth needed
Prerequisites: access to the search.php endpoint
devstral-2 · analyzed May 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit exploit
ExploitDB-49593
https://www.exploit-db.com/exploits/49593
Third Party Advisory third-party-advisory
VulnCheck Advisory: LayerBB 1.1.4 SQL Injection via search_query Parameter
https://www.vulncheck.com/advisories/layerbb-sql-injection-via-search-query-parameter

Scores

CVSS v3 8.2
EPSS 0.0024
EPSS Percentile 14.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-89
Status published
Products (1)
LayerBB/LayerBB 1.1.4
Published May 16, 2026
Tracked Since May 16, 2026