CVE-2025-40730

MEDIUM

Chorus CMS - Stored Cross-Site Scripting via Search 'q' Parameter

Title source: llm

Description

HTML injection in Vox Media's Chorus CMS. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by sending them a malicious URL using the 'q' parameter in '/search'. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.

References (1)

Core 1

Core References

Third Party Advisory

https://www.incibe.es/en/incibe-cert/notices/aviso/html-injection-vox-medias-chorus-cms

Scores

CVSS v4 4.8

EPSS 0.0028

EPSS Percentile 19.9%

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/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 no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

Vox Media/Chorus CMS all versions

Published Jul 28, 2025

Tracked Since Feb 18, 2026