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CVE-2023-48313

Umbraco contains a DOM-XSS

MEDIUM
6.1
CVSS Score
Published: December 12, 2023 at 05:23 PM UTC
Updated: June 17, 2026 at 06:33 AM UTC
1 product affected across 1 vendorUmbraco-CMS

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Umbraco is an ASP.NET content management system (CMS). Starting in 10.0.0 and prior to versions 10.8.1 and 12.3.4, Umbraco contains a cross-site scripting (XSS) vulnerability enabling attackers to bring malicious content into a website or application. Versions 10.8.1 and 12.3.4 contain a patch for this issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Umbraco-CMS· Umbraco
95%
v < 10.8.1v < 12.3.410.0.0 ≤ v < 10.8.112.0.0 ≤ v < 12.3.4
Affected range stops below 10.8.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.3.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-v98m-398x-269r

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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