VDB-349164 · CVE-2026-28109 · EUVD-2026-9763

LambertGroup AllInOne Plugin up to 3.8 on WordPress cross site scripting

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.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in LambertGroup AllInOne Plugin up to 3.8 on WordPress and classified as problematic. This affects an unknown part. The manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2026-28109. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in LambertGroup AllInOne Plugin up to 3.8 on WordPress. Affected is an unknown code. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LambertGroup LambertGroup - AllInOne - Content Slider all-in-one-contentSlider allows Reflected XSS.This issue affects LambertGroup - AllInOne - Content Slider: from n/a through <= 3.8.

The weakness was shared by João Pedro S Alcântara. The advisory is shared for download at patchstack.com. This vulnerability is traded as CVE-2026-28109 since 02/25/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-9763). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

WordPress Plugin

Vendor

LambertGroup

Name

AllInOne Plugin

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 4.3
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 7.1
ADP CISA Vector: 🔒

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: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

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

02/25/2026 CVE reserved
03/05/2026 +8 days Advisory disclosed
03/05/2026 +0 days VulDB entry created
03/07/2026 +2 days VulDB entry last update

Sourcesinfo

Advisory: patchstack.com
Researcher: João Pedro S Alcântara
Status: Not defined

CVE: CVE-2026-28109 (🔒)
GCVE (CVE): GCVE-0-2026-28109
GCVE (VulDB): GCVE-100-349164
EUVD: 🔒

Entryinfo

Created: 03/05/2026 08:39
Updated: 03/07/2026 08:01
Changes: 03/05/2026 08:39 (55), 03/05/2026 11:49 (1), 03/07/2026 08:01 (12)
Complete: 🔍
Cache ID: 216::103