CVE-2025-32123
Published: 22 January 2026
Summary
CVE-2025-32123 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 5.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).
Deeper analysis
CVE-2025-32123 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, affecting the LambertGroup HTML5 Video Player with Playlist & Multiple Skins WordPress plugin (lbg-vp2-html5-rightside). The flaw impacts all versions up to and including 5.3.5, where user input is not properly sanitized during web page generation, enabling malicious script injection. 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 complexity, and scope change.
Remote attackers without authentication can exploit this vulnerability by crafting malicious links or payloads that trick users into interacting with a vulnerable site, such as clicking a link or submitting input via the plugin's interface. Successful exploitation allows arbitrary JavaScript execution in the victim's browser context, potentially leading to low-level impacts on confidentiality (e.g., session token theft), integrity (e.g., data tampering), and availability, with the changed scope amplifying effects across origins.
The Patchstack advisory documents this issue in their vulnerability database for the WordPress plugin, highlighting the Reflected XSS in version 5.3.5 and prior, though specific patch details or mitigation steps are outlined in the referenced entry at https://patchstack.com/database/Wordpress/Plugin/lbg-vp2-html5-rightside/vulnerability/wordpress-html5-video-player-with-playlist-multiple-skins-plugin-5-3-5-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve. Security practitioners should update to a patched version if available or disable the plugin on affected sites.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-4121
Vulnerability details
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LambertGroup HTML5 Video Player with Playlist & Multiple Skins lbg-vp2-html5-rightside allows Reflected XSS.This issue affects HTML5 Video Player with Playlist & Multiple Skins: from n/a through <= 5.3.5.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Reflected XSS enables arbitrary JS execution via crafted malicious links, directly facilitating drive-by compromise (T1189) and spearphishing links (T1566.002).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation and sanitization of all user-supplied input before it is used in web page generation, preventing the reflected XSS payload from being injected in the LambertGroup plugin.
Requires filtering of information output by the application to remove or encode dangerous script content, blocking reflected XSS from executing in the victim's browser context.
Provides mechanisms to detect and block malicious code (including injected scripts) at the system boundary before it reaches the vulnerable plugin endpoint.