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Wp Fastest Cache - SQL Injection (CVE-2015-9316)

CVE-2015-9316

Vulnerability CVE-2015-9316 PLUGIN wp-fastest-cache CRITICAL

The wp-fastest-cache plugin before 0.8.4.9 for WordPress has SQL injection in wp-admin/admin-ajax.php?action=wpfc_wppolls_ajax_request via the poll_id parameter.

CVE-2015-9316

CRITICAL CVSS 9.8 Published 2019-08-14 Updated 2026-06-17
AI Risk Critical (100/100) Active Exploit: Likely Published Exploit: Public exploit references found Priority: P1 Immediate
Severity Band CRITICAL
CVSS Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Components 1
Reference Links 2
AI Risk Engine Critical (100/100)
Exploitability High
Active Exploitation Likely
Published Exploit Status Public exploit references found

Threat Timeline

  1. 2019-08-14 CVE published and first recorded in the threat feed.
  2. 2026-06-17 Record updated with latest vulnerability metadata.
  3. 2026-09-14 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 4 days ago

AI enriched 4 days ago (2026-09-14 10:56 UTC)

Technical Summary

The wp-fastest-cache plugin before 0.8.4.9 for WordPress has SQL injection in wp-admin/admin-ajax.php?action=wpfc_wppolls_ajax_request via the poll_id parameter.

Potential Impact

Severity is CRITICAL (CVSS 9.8). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on published exploit references.

Primary risk drivers: published exploit references

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 100/100 (Critical, High) with priority P1 Immediate. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Wp Fastest Cache PLUGIN · wp-fastest-cache Affected: < 0.8.4.9 Fixed in: 0.8.4.9

Related Vulnerabilities

Browse All Threats

Newest linked vulnerabilities to keep visitors exploring adjacent CVE coverage.

WP Fastest Cache - Security Vulnerability (CVE-2026-74916) CVE-2026-74916 Published 2026-09-01 Wp Fastest Cache - Cross-Site Scripting (XSS) (CVE-2026-19760) CVE-2026-19760 Published 2026-08-26 WP Fastest Cache - Improper Input Validation (CVE-2026-74932) CVE-2026-74932 Published 2026-08-25 WP Fastest Cache - Broken Access Control (CVE-2025-10476) CVE-2025-10476 Published 2025-11-27 Wp Fastest Cache - Security Vulnerability (CVE-2020-36836) CVE-2020-36836 Published 2024-10-16 Wp Fastest Cache - Path Traversal (CVE-2024-4347) CVE-2024-4347 Published 2024-05-23

References

What to do about this

Patch immediately Serious, and reachable without meaningful privilege.

Fix it

Update Wp Fastest Cache to 0.8.4.9 or later.

That is the complete fix. Everything below is what protects you in the meantime.

Cannot update today? Request / payload inspection (WAF) in Hack Halt ProSecure blocks this class of attack before WordPress processes the request.

Inspect request parameters and bodies for injection, traversal and file-inclusion payloads, and refuse the request rather than logging it.

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Not sure if you are affected?

Scan your site to see whether it runs Wp Fastest Cache, and at which version.

Free, no installation, no account. It reads what your site already publishes, then tells you which plugins carry known vulnerabilities and what to do about each one.

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Am I affected by this vulnerability?

You are affected if your site runs Wp Fastest Cache. Versions below 0.8.4.9 are vulnerable; that release and later are not.

How do I fix it?

Update Wp Fastest Cache to version 0.8.4.9 or later. That is the complete fix. Until you can update, Request / payload inspection (WAF) in Hack Halt ProSecure contains this class of attack at the request layer.

What can an attacker actually do?

This is a SQL Injection flaw. An attacker who exploits it can read, alter or delete anything in the site database, including user accounts and password hashes.

WordPress security that blocks attacks before they land.

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