Medium severity · published Jan 22, 2025
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
6.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UC
Umbraco Cms · Umbraco
14.3.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-55488
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-55488
docs.umbraco.com
https://docs.umbraco.com/umbraco-cms/develop-with-umbraco/templating-and-rendering/design/stylesheets-javascript
Exploit
https://www.nccgroup.com/us/research-blog/technical-advisory-cross-site-scripting-in-umbraco-rich-text-display/
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