01 Record

CVE-2026-55850

Element Web: A malicious homeserver can inject HTML in Element Web using its homepage

MediumPUBLISHEDCNA: GitHub_M

Base score5.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

02 Description

Element Web: A malicious homeserver can inject HTML in Element Web using its homepage

Published

2026-08-21 18:30Z7 HR AGO

Last updated

2026-08-21 19:54Z5 HR AGO

Reserved

2026-06-17

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Weaknesses

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

SSVC decision

ExploitationnoneAutomatablenoTechnical Impactpartial

Data version

5.2

Document digest

bbc751fe83a316bdeba24afcb1a576817dfa279c3c3fe35b9d916cd65581fb05

VendorProductVersionsPlatforms

element-hqelement-web< 1.12.22—