CVE-2025-25299

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-25299
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-25299.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-25299
Aliases
Downstream
Published
2025-02-20T19:23:03.013Z
Modified
2025-12-05T08:53:54.631669Z
Severity
  • 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Cross-site scripting (XSS) in the real-time collaboration package
Details

CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. During a recent internal audit, a Cross-Site Scripting (XSS) vulnerability was discovered in the CKEditor 5 real-time collaboration package. This vulnerability affects user markers, which represent users' positions within the document. It can lead to unauthorized JavaScript code execution, which might happen with a very specific editor and token endpoint configuration. This vulnerability affects only installations with Real-time collaborative editing enabled. The problem has been recognized and patched. The fix is available in version 44.2.1 (and above). Users are advised to upgrade. There are no known workarounds for this vulnerability.

Database specific
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25299.json",
    "cwe_ids": [
        "CWE-79",
        "CWE-80"
    ]
}
References

Affected packages

Git / github.com/ckeditor/ckeditor5

Affected ranges

Type
GIT
Repo
https://github.com/ckeditor/ckeditor5
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

10.*

10.1.0

v0.*

v0.1.0
v0.10.0
v0.11.0
v0.2.0
v0.3.0
v0.4.0
v0.5.0
v0.6.0
v0.7.0
v0.9.0

v1.*

v1.0.0-alpha.1
v1.0.0-alpha.2
v1.0.0-beta.1
v1.0.0-beta.2
v1.0.0-beta.4

v10.*

v10.0.0
v10.0.1
v10.1.0

v11.*

v11.0.0
v11.0.1
v11.1.0
v11.1.1
v11.2.0

v12.*

v12.0.0
v12.1.0
v12.2.0
v12.3.0
v12.3.1
v12.4.0

v15.*

v15.0.0

v16.*

v16.0.0

v17.*

v17.0.0

v18.*

v18.0.0

v19.*

v19.0.0
v19.1.0
v19.1.1

v20.*

v20.0.0

v21.*

v21.0.0

v22.*

v22.0.0

v23.*

v23.0.0
v23.1.0

v24.*

v24.0.0

v25.*

v25.0.0

v26.*

v26.0.0

v27.*

v27.0.0
v27.1.0

v28.*

v28.0.0

v29.*

v29.0.0
v29.1.0
v29.2.0

v30.*

v30.0.0

v31.*

v31.0.0
v31.1.0

v32.*

v32.0.0

v33.*

v33.0.0

v34.*

v34.0.0
v34.1.0
v34.2.0

v35.*

v35.0.0
v35.0.1
v35.1.0
v35.2.0
v35.2.1
v35.3.0
v35.3.1
v35.3.2
v35.4.0

v36.*

v36.0.0
v36.0.1

v37.*

v37.0.0
v37.0.0-alpha.0
v37.0.0-alpha.1
v37.0.0-alpha.2
v37.0.0-alpha.3
v37.0.0-rc.0
v37.0.1
v37.1.0

v38.*

v38.0.0
v38.0.0-alpha.0
v38.0.0-rc.0
v38.0.0-rc.1
v38.0.1
v38.1.0
v38.1.1

v39.*

v39.0.0
v39.0.1
v39.0.2

v40.*

v40.0.0
v40.1.0
v40.2.0

v41.*

v41.0.0
v41.1.0
v41.2.0
v41.2.1
v41.3.0
v41.3.0-alpha.0
v41.3.0-alpha.1
v41.3.0-alpha.2
v41.3.0-alpha.3
v41.3.0-alpha.4
v41.3.1
v41.4.0
v41.4.0-alpha.0
v41.4.1
v41.4.2

v42.*

v42.0.0
v42.0.1
v42.0.2

v43.*

v43.0.0
v43.1.0
v43.1.1
v43.2.0
v43.3.0
v43.3.1

v44.*

v44.0.0
v44.1.0
v44.2.0