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TI-2021-22567 Aliases CVE-2021-47954GHSA-c38h-whgr-4j82

LayerBB 1.1.4 SQL Injection via search_query Parameter

Priority HIGH 77CWE-89Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
SQL injection
Confidentiality · integrity · availability
High · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-89.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00237 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LayerBBLayerBB1.1.4—No fix listedCNA
  • LayerBB VendorLayerBB Affected 1.1.4 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47954
  2. 2026-10-03 Alias added: GHSA-c38h-whgr-4j82

References

Exploit 1

  • TI-2019-10422 LayerBB 1.1.3 allows admin/general.php arbitrary file upload because the custom_logo… CVSS 3.0CRITICAL 9.8
  • TI-2018-12807 LayerBB 1.1.1 and 1.1.3 has SQL Injection via the search.php search_query parameter. CVSS 3.1CRITICAL 9.8
  • TI-2019-12394 LayerBB before 1.1.4 has multiple CSRF issues, as demonstrated by changing the System Settings via admin/general.php. CVSS 3.1HIGH 8.8
  • TI-2019-10423 LayerBB 1.1.3 allows conversations.php/cmd/new CSRF. CVSS 3.0HIGH 8.8
  • TI-2018-12810 LayerBB before 1.1.3 allows CSRF for adding a user via admin/new_user.php, deleting a… CVSS 3.0MEDIUM 6.5
  • TI-2018-12811 LayerBB 1.1.1 allows XSS via the titles of conversations (PMs). CVSS 3.0MEDIUM 6.1
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences