BoldGrid W3 Total Cache Plugin up to 2.9.1 on WordPress Input Vulnerability improper validation of specified quantity in input

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in BoldGrid W3 Total Cache Plugin up to 2.9.1 on WordPress. The impacted element is an unknown function of the component Input Vulnerability. The manipulation results in improper validation of specified quantity in input. This vulnerability is reported as CVE-2026-27384. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in BoldGrid W3 Total Cache Plugin up to 2.9.1 on WordPress. Affected is some unknown functionality of the component Input Vulnerability. The manipulation with an unknown input leads to a improper validation of specified quantity in input vulnerability. CWE is classifying the issue as CWE-1284. The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Improper Validation of Specified Quantity in Input vulnerability in BoldGrid W3 Total Cache w3-total-cache allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects W3 Total Cache: from n/a through <= 2.9.1.

The weakness was disclosed by Code White Gmbh. The advisory is shared for download at patchstack.com. This vulnerability is traded as CVE-2026-27384 since 02/19/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. 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 03/11/2026).

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 9.0
ADP CISA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Improper validation of specified quantity in input
CWE: CWE-1284 / CWE-703
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/19/2026 CVE reserved
03/05/2026 +14 days Advisory disclosed
03/05/2026 +0 days VulDB entry created
03/11/2026 +6 days VulDB entry last update

Sourcesinfo

Advisory: patchstack.com
Researcher: Code White Gmbh
Status: Not defined

CVE: CVE-2026-27384 (🔒)
GCVE (CVE): GCVE-0-2026-27384
GCVE (VulDB): GCVE-100-349092

Entryinfo

Created: 03/05/2026 08:21
Updated: 03/11/2026 16:08
Changes: 03/05/2026 08:21 (55), 03/10/2026 11:04 (11), 03/11/2026 16:08 (1)
Complete: 🔍
Cache ID: 216::103

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