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CVE-2026-51775 Fastadmin CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-03T21:16:40.153Z and has not been modified since then. CVE-2026-51775 is a critical SQL injection vulnerability in Fastadmin v.1.6.1.20250430, allowing an attacker to execute arbitrary code via the application/common/controller/Backend.php component. The CVSS score is 9.8, indicating a high severity vulnerability. Affected administrators should prioritize patching or implementing compensating controls to mitigate the risk of exploitation. The vulnerability class is SQL injection, which can lead to arbitrary code execution. The likely operational impact is high, as an attacker can execute arbitrary code. The source-confidence limits are based on official CVE and NVD sources. The review context suggests that administrators should verify the presence of affected versions in their environments and monitor for vendor remediation or patch release.

Vendor
Fastadmin
Product
Fastadmin 1.6.1.20250430
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-03
Original CVE updated
2026-09-09
Advisory published
2026-08-03
Advisory updated
2026-09-09

Who should care

Administrators and security teams responsible for Fastadmin installations should be aware of this vulnerability and take immediate action to mitigate the risk. They should verify the presence of affected versions in their environments, monitor for vendor remediation or patch release, and implement compensating controls to detect and prevent SQL injection attacks. Security teams should also consider exception tracking for unpatched instances and review relevant monitoring, detection, and logs for exposed assets that need extra review.

Technical summary

CVE-2026-51775 is a critical SQL injection vulnerability in Fastadmin v.1.6.1.20250430. The vulnerability allows an attacker to execute arbitrary code via the application/common/controller/Backend.php component. The CVSS score is 9.8, indicating a high severity vulnerability. Affected administrators should prioritize patching or implementing compensating controls to mitigate the risk of exploitation.

Defensive priority

Immediate attention recommended due to critical CVSS score of 9.8.

Recommended defensive actions

  • Inventory and verify Fastadmin installations for version 1.6.1.20250430
  • Implement compensating controls to detect and prevent SQL injection attacks
  • Monitor for vendor remediation or patch release
  • Consider exception tracking for unpatched instances

Evidence notes

Evidence from official CVE and NVD sources indicates a SQL injection vulnerability in Fastadmin v.1.6.1.20250430. Limited details on affected configurations and vendor remediation status. The vulnerability allows an attacker to execute arbitrary code via the application/common/controller/Backend.php component. Administrators should verify the presence of affected versions in their environments and monitor for vendor remediation or patch release. Defensive measures, such as compensating controls and inventory tracking, are recommended until a patch is available.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-51775 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-51775

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-51775 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-51775

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.