CVE-2026-28109
Published: 05 March 2026
Summary
CVE-2026-28109 is a high-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Drive-by Compromise (T1189); ranked at the 11.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS directly enables arbitrary JavaScript execution in the victim's browser via a crafted link to the public-facing vulnerable site, mapping to Drive-by Compromise (T1189) for initial client-side access and JavaScript (T1059.007) as the abused scripting interpreter for actions such as session hijacking or data theft.
NVD Description
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.
Deeper analysisAI
CVE-2026-28109 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-Site Scripting (XSS) under CWE-79, affecting the LambertGroup AllInOne Content Slider WordPress plugin (all-in-one-contentSlider). The issue impacts all versions from unknown (n/a) through 3.8 inclusive. Published on 2026-03-05, it carries a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L), indicating high severity due to network accessibility, low attack complexity, no required privileges, user interaction, and changed scope with low impacts on confidentiality, integrity, and availability.
Attackers can exploit this vulnerability remotely without authentication by crafting malicious input that reflects via the web page generation process, tricking users into interacting with it, such as clicking a specially crafted link. Successful exploitation executes arbitrary JavaScript in the victim's browser context, potentially leading to session hijacking, data theft, or further phishing attacks within the scope of the affected site.
Patchstack advisories document the vulnerability and provide details on affected versions; security practitioners should consult https://patchstack.com/database/Wordpress/Plugin/all-in-one-contentSlider/vulnerability/wordpress-lambertgroup-allinone-content-slider-plugin-3-8-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve for mitigation guidance, including plugin updates if available beyond version 3.8.
Details
- CWE(s)