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CVE-2017-15280

20
FAUCET Score

CVE-2017-15280 is an XML External Entity (XXE) vulnerability affecting Umbraco CMS versions prior to 7.7.3. This flaw allows an attacker to read arbitrary files on the server or initiate Server-Side Request Forgery (SSRF) attacks against internal network hosts. With a CVSS score of 5.5 (Medium), successful exploitation requires user interaction and can lead to sensitive information disclosure. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.7.2CPE matchmatch criteria
cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 71st percentile among its peer group of 5,760 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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 (2)

github_advisorypatch availablevia nvd_reference
View patch
nugetpatch availablevia ghsa
Product: UmbracoCms.WebFixed in: 7.7.3

Vendor Advisories (1)

nugetGHSA-h2vq-7gf2-qw9vmedium

Umbraco CMS XXE Vulnerability

May 17, 2022

References

issues.umbraco.org / issue/U4-10506
Issue TrackingPatchVendor Advisory
github.com / umbraco/Umbraco-CMS/commit/5dde2efe0d2b3a47d17439e03acabb7ea2befb64
PatchThird Party Advisory