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 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.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS

0.32% chance of exploitation in the next 30 days, 25th percentile

Published

2025-01-22

Updated

2026-07-05

Proof-of-concept exploits (1)

• https://www.nccgroup.com/us/research-blog/technical-advisory-cross-site-scripting-in-umbr…

References

• CVE Record
• NVD entry

Related

• CVE-2024-55466
• CVE-2024-55496
• CVE-2024-55457
• CVE-2024-55503
• CVE-2024-55456
• CVE-2024-55504