VDB-428000 · CVE-2026-116390 · GCVE-0-2026-116390

stepasyuk Filter Everything Plugin up to 1.9.7 on WordPress deserialization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.9	$0-$5k	1.85-

Summaryinfo

A vulnerability was found in stepasyuk Filter Everything Plugin up to 1.9.7. It has been declared as problematic. Affected by this issue is some unknown functionality. Such manipulation leads to deserialization. This vulnerability is referenced as CVE-2026-116390. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in stepasyuk Filter Everything Plugin up to 1.9.7 and classified as problematic. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Deserialization of Untrusted Data vulnerability in stepasyuk Filter Everything — WordPress & WooCommerce Filters filter-everything allows Object Injection.This issue affects Filter Everything — WordPress & WooCommerce Filters: from n/a through 1.9.7.

The advisory is shared for download at patchstack.com. This vulnerability is handled as CVE-2026-116390 since 10/26/2026. The exploitation is known to be easy. The attack may be launched remotely. The exploitation requires an enhanced level of successful authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/28/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

WordPress Plugin

Vendor

stepasyuk

Name

Filter Everything Plugin

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.7
VulDB Temp Score: 4.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.2
CNA Vector (Patchstack): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/26/2026 CVE reserved
10/28/2026 +2 days Advisory disclosed
10/28/2026 +0 days VulDB entry created
10/28/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: patchstack.com
Status: Not defined

CNA: Patchstack
CVE: CVE-2026-116390 (🔒)

GCVE (CVE): GCVE-0-2026-116390
GCVE (VulDB): GCVE-100-428000

Entryinfo

Created: 10/28/2026 15:19
Changes: 10/28/2026 15:19 (62)
Complete: 🔍
Cache ID: 216::103