What is the CVSS score of EUVD-2026-15653?

EUVD-2026-15653 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

Which versions of Rsfirewall are affected by EUVD-2026-15653?

CVE-2026-25341 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 7.1.

How to fix or mitigate EUVD-2026-15653?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Verify anti-CSRF tokens and content security policies are enforced.

Rsfirewall EUVD-2026-15653

| CVE-2026-25341 HIGH

Cross-site Scripting (XSS) (CWE-79)

2026-03-25 Patchstack

GHSA-93j2-qhr6-j792

XSS Rsfirewall

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Re-analysis Queued

Apr 24, 2026 - 16:37 vuln.today

cvss_changed

EUVD ID Assigned

Mar 25, 2026 - 16:47 euvd

EUVD-2026-15653

Analysis Generated

Mar 25, 2026 - 16:47 vuln.today

CVE Published

Mar 25, 2026 - 16:14 nvd

HIGH 7.1

DescriptionCVE.org

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in RSJoomla! RSFirewall! rsfirewall allows Stored XSS.This issue affects RSFirewall!: from n/a through <= 1.1.45.

AnalysisAI

RSFirewall!, a security plugin for Joomla, contains a Stored Cross-Site Scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability affects RSFirewall! versions up to and including 1.1.45, enabling authenticated or unauthenticated attackers (depending on configuration) to store persistent XSS payloads that execute in the browsers of administrators and site visitors. No CVSS score, EPSS data, or KEV status is currently available, but the Patchstack report indicates active awareness of this vulnerability in the security community.

Technical ContextAI

This vulnerability is a Stored XSS flaw classified under CWE-79 (Improper Neutralization of Input During Web Page Generation), which occurs when user-supplied input is not properly sanitized or escaped before being rendered in HTML context. RSFirewall! (CPE: cpe:2.3:a:rsjoomla!:rsfirewall!:*:*:*:*:*:*:*:*) is a Joomla! security extension responsible for firewall functionality, access control, and input filtering. The root cause involves inadequate input validation or output encoding in the plugin's code, allowing an attacker to bypass the firewall's own protections to inject JavaScript that persists in the database and executes whenever the affected page is loaded. The vulnerability likely exists in admin panels, configuration interfaces, or user-facing forms where the plugin processes and displays user input without sufficient HTML entity encoding or Content Security Policy enforcement.

RemediationAI

Immediately upgrade RSFirewall! to a version newer than 1.1.45; check the official RSJoomla! website or Joomla extension marketplace for the latest patched release. Until a patch is available or deployment is feasible, implement the following mitigations: enable a Web Application Firewall (WAF) with XSS filtering rules, enforce Content Security Policy (CSP) headers to restrict inline script execution, and disable or restrict user input to RSFirewall! admin panels to trusted administrators only. Additionally, sanitize and escape all user inputs at the application level by ensuring the plugin's developers have implemented proper output encoding (HTML entity encoding) for all dynamic content. Monitor the Patchstack advisory and RSJoomla! security announcements for patch availability. If running on WordPress (note: the reference URL mentions WordPress but RSFirewall! is primarily a Joomla extension), ensure the correct Joomla version of the plugin is deployed.