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Critical

Blind SQL Injection in Product Filter by WBW

IdentifiersCVE-2026-39494CWE-89· Improper Neutralization of Special…

CVE-2026-39494 is a blind SQL injection vulnerability in the WordPress plugin Product Filter by WBW from WBW Plugins. The issue is caused by improper neutralization of special elements used in SQL commands, allowing attacker-controlled input to influence backend database queries. The available record does not identify the specific vulnerable parameter or function, but confirms that the flaw permits blind SQL injection. The vulnerability affects Product Filter by WBW through version 3.1.2.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows a remote attacker to perform blind SQL injection against the affected WordPress site without authentication or user interaction. Depending on the database privileges available to the application and the reachable query context, this can enable unauthorized inference and extraction of sensitive database contents. The published CVSS vector indicates high confidentiality impact and low availability impact, with no stated integrity impact.

Mitigation

If you can’t patch tonight, do this now.

Until a fixed version is deployed, restrict access to the affected plugin functionality where feasible, especially from untrusted networks or unauthenticated users. Apply compensating controls such as WAF rules and request filtering to detect or block SQL injection payloads targeting Product Filter by WBW endpoints and parameters. Monitor web and database logs for anomalous query behavior or repeated blind SQLi probing patterns.

Remediation

Patch, then assume compromise.

Upgrade Product Filter by WBW to a version newer than 3.1.2 once a vendor fix is available. If a patched release has already been published, deploy that fixed version across all affected WordPress instances. Review vendor advisories and Patchstack guidance for the definitive fixed version and any additional hardening recommendations.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
WBW PluginsProduct Filter By Wbwapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

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This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity6

Community discussion across Reddit, Mastodon, and other social sources.