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CVE-2026-42558

Xibo is an open source digital signage platform with a web content management system and Windows display player software. Prior to 4.4.2, a vulnerability chain consisting of Stored XSS and Iframe Sandbox escape in the Xibo CMS allows users with DataSet permissions to use the Data Connector functionality to craft messages which escape the sandbox and facilitate XSS. Exploitation of the vulnerability is possible on behalf of an authorized user who has both of the following privileges, which are no
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1048978e2afaa5202da8584f5983e431f24a87d4b3ab03e473a2644dfb9e73ed
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:371898a4419b3788e047f1557e031944f15b1b8ebcc854a5d3cd13079c0c6bcd · sha256:a1b1f1377aa49626… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:371898a4419b3788e047f1557e031944f15b1b8ebcc854a5d3cd13079c0c6bcd · sha256:a1b1f1377aa49626… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:371898a4419b3788e047f1557e031944f15b1b8ebcc854a5d3cd13079c0c6bcd · sha256:a1b1f1377aa49626… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"xibo-cms","vendor":"xibosignage","versions":[{"status":"affected","version":"< 4.4.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:371898a4419b3788e047f1557e031944f15b1b8ebcc854a5d3cd13079c0c6bcd · sha256:a1b1f1377aa49626… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:371898a4419b3788e047f1557e031944f15b1b8ebcc854a5d3cd13079c0c6bcd · sha256:a1b1f1377aa49626… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:371898a4419b3788e047f1557e031944f15b1b8ebcc854a5d3cd13079c0c6bcd · sha256:a1b1f1377aa49626… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:371898a4419b3788e047f1557e031944f15b1b8ebcc854a5d3cd13079c0c6bcd · sha256:a1b1f1377aa49626… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:371898a4419b3788e047f1557e031944f15b1b8ebcc854a5d3cd13079c0c6bcd · sha256:a1b1f1377aa49626… · /containers/cna/problemTypes/2/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-6389-j56c-9fww","tags":["x_refsource_CONFIRM"],"url":"https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-6389-j56c-9fww"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:371898a4419b3788e047f1557e031944f15b1b8ebcc854a5d3cd13079c0c6bcd · sha256:a1b1f1377aa49626… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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