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CVE-2023-48313

20
FAUCET Score

CVE-2023-48313 is a cross-site scripting (XSS) vulnerability affecting Umbraco CMS versions 10.0.0 through 10.8.0 and 12.0.0 through 12.3.3, allowing attackers to inject malicious content. Rated MEDIUM with a CVSS score of 6.1, this vulnerability requires user interaction (UI:R) and can lead to low impact on confidentiality and integrity (C:L/I:L). There is no evidence of active exploitation, public exploit code, or significant community discussion, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
>= 10.0.0, < 10.8.1CPE matchmatch criteria
cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*
>= 12.0.0, < 12.3.4CPE matchmatch criteria
cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
34.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 36th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

nugetpatch availablevia ghsa
Product: Umbraco.CMSFixed in: 10.8.1
nugetpatch availablevia ghsa
Product: Umbraco.CMSFixed in: 12.3.4
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

nugetGHSA-v98m-398x-269rmedium

DOM-XSS on Backoffice login screen.

Dec 13, 2023

References

github.com / umbraco/Umbraco-CMS/security/advisories/GHSA-v98m-398x-269r
Vendor Advisory