CVE-2025-26573

WordPress Rizzi Guestbook plugin <= 4.0.1 - Cross Site Scripting (XSS) vulnerability

Published Mar 26, 2025 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in JamRizzi Technologies Rizzi Guestbook rizzi-guestbook allows Reflected XSS.This issue affects Rizzi Guestbook: from n/a through <= 4.0.1.

Analysis

Technical impact

The vulnerability is an improper neutralization of input during web page generation, allowing attackers to perform a reflected XSS attack against users viewing the Rizzi Guestbook plugin. This type of weakness (CWE‑79) can enable the injection of arbitrary JavaScript; an attacker could hijack user sessions, redirect users to malicious sites, or perform phishing campaigns on the victim’s domain.

Affected Systems

JamRizzi Technologies’ Rizzi Guestbook plugin is affected, specifically all releases through and including version 4.0.1.

Risk and Exploitability

The CVSS score of 7.1 places this flaw in the high‐severity range, yet the EPSS score of less than 1% indicates a very low current exploitation probability. The vulnerability is not listed in the CISA KEV catalog. Attackers would need to craft a URL that includes unsanitized input to trigger the reflected XSS; no additional privileges or network access are required.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

JamRizzi Technologies

Rizzi Guestbook

unaffected

Version	Status	Constraints
`0`	affected	≤ 4.0.1

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Install the latest version of the Rizzi Guestbook plugin (4.0.2 or later) once it is available to address the XSS flaw.
If an upgrade is not immediately possible, disable or remove the plugin from the WordPress installation to eliminate the attack surface.
Implement an application‑level input filtering or use a Web Application Firewall to block reflected XSS payloads targeting the guestbook URLs.

Generated by OpenCVE AI on May 1, 2026 at 13:20 UTC.

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2025-8167	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound Rizzi Guestbook allows Reflected XSS. This issue affects Rizzi Guestbook: from n/a through 4.0.1.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.393% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://patchstack.com/database/Wordpress/Plugin/rizzi-guestbook/vulnerability/wordpress-rizzi-guestbook-plugin-4-0-1-cross-site-scripting-xss-vulnerability?_s_id=cve

History

Apr 23, 2026 3:00 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`

Apr 1, 2026 11:45 PM Description updated. References updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound Rizzi Guestbook allows Reflected XSS. This issue affects Rizzi Guestbook: from n/a through 4.0.1.	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in JamRizzi Technologies Rizzi Guestbook rizzi-guestbook allows Reflected XSS.This issue affects Rizzi Guestbook: from n/a through <= 4.0.1.
References	https://patchstack.com/database/wordpress/plugin/rizzi-guestbook/vulnerability/wordpress-rizzi-guestbook-plugin-4-0-1-cross-site-scripting-xss-vulnerability?_s_id=cve	https://patchstack.com/database/Wordpress/Plugin/rizzi-guestbook/vulnerability/wordpress-rizzi-guestbook-plugin-4-0-1-cross-site-scripting-xss-vulnerability?_s_id=cve
Metrics	cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`

Mar 26, 2025 3:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mar 26, 2025 2:45 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound Rizzi Guestbook allows Reflected XSS. This issue affects Rizzi Guestbook: from n/a through 4.0.1.
Title		WordPress Rizzi Guestbook plugin <= 4.0.1 - Cross Site Scripting (XSS) vulnerability
Weaknesses		CWE-79
References		https://patchstack.com/database/wordpress/plugin/rizzi-guestbook/vulnerability/wordpress-rizzi-guestbook-plugin-4-0-1-cross-site-scripting-xss-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`