CVE-2025-54299

CRITICAL

No Boss Testimonials component for Joomla 1.0.0-3.0.0 and 4.0.0-4.0.2 - Stored Cross-Site Scripting

Title source: llm

STIX 2.1

Description

A stored XSS vulnerability in No Boss Testimonials component 1.0.0-3.0.0 and 4.0.0-4.0.2 for Joomla was discovered.

References (1)

Core 1

Core References

Various Sources product

https://nobossextensions.com/

Scores

CVSS v4 9.4

EPSS 0.0041

EPSS Percentile 32.6%

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-79

Status published

Products (2)

nobossextensions.com/No Boss Testimonials component for Joomla 1.0.0-3.0.0

nobossextensions.com/No Boss Testimonials component for Joomla 4.0.0-4.0.2

Published Jul 28, 2025

Tracked Since Feb 18, 2026