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CVE WatchJul 5, 2026

CVE-2024-55488

A stored cross-site scripting (XSS) vulnerability in Umbraco CMS v14.3.1 allows attackers to execute arbitrary web scripts or HTML via a cra

CVSS

6.5

Medium

EPSS

0.3%

p25

KEV

Exploit Today

8

0-100

Published: Jan 22, 2025 · Last modified: Jul 5, 2026 · CWE-79

EPSS · 30d
0.3%EPSS · 30 days0.3%
2026-08-172026-09-13
Technical description

A stored cross-site scripting (XSS) vulnerability in Umbraco CMS v14.3.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload. NOTE: This has been disputed by the vendor since this potential attack is only possible via authenticated users who have been manually allowed access to the CMS. There was a deliberate decision made not to apply HTML sanitization at the product level.

Official references
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