CVE-2026-31955Network attack vector

Internal resource access via unrestricted DataSet URLs

Published Apr 24, 2026 · Updated Apr 24, 2026

SSRF in Xibo CMS before 4.4.1 allows remote authenticated users with DataSet permissions to access internal and external network resources. Remote DataSet functionality accepts a user-controlled source URL and directs the CMS server to fetch it without restricting the destination. The required Add DataSet privilege is not granted to non-admins by default; successful requests expose internal services or cloud metadata.

CVSS severity4.9
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Xibo CMS before 4.4.1 allows remote authenticated users with DataSet permissions to access internal and external network resources. Remote DataSet functionality accepts a user-controlled source URL and directs the CMS server to fetch it without restricting the destination. The required Add DataSet privilege is not granted to non-admins by default; successful requests expose internal services or cloud metadata.

The record

CVE
CVE-2026-31955
Published
Apr 24, 2026
Updated
Apr 24, 2026
Vendor
Xibo Signage
Product
Xibo CMS
Classifications
CWE-918, T1046
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Xibo Signage · Xibo CMSversion=< 4.4.1

Published CVSS scores

4.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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