CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. ckeditor5 and ckeditor5-clipboard versions 46.0.0 through 46.0.2 and 44.2.0 through 45.2.1 contain a Cross-Site Scripting (XSS) vulnerability. Ability to exploit could be triggered by a specific user action (leading to unauthorized JavaScript code execution) if the attacker managed to insert a malicious content into the editor, which might happen with a very specific editor configuration. This vulnerability affects installations where the editor configuration meets one of the following criteria: the HTML embed plugin is enabled, or there is a custom plugin introducing an editable element where view RawElement is enabled. This issue is fixed in versions 45.2.2 and 46.0.3 of both ckeditor5 and ckeditor5-clipboard.
CVE-2025-58064
LOWNVD 2.32.3—
EchelonGraph scoreMEDIUM confidence
This low-severity CVE scores 2.3 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 57% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
2.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 2.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 2.3
- EG Score
- 2.3(medium)
- EPSS
- 31.4%
- KEV
- Not listed
Published
September 4, 2025
Last Modified
April 15, 2026
References (2)
- security-advisories@githubhttps://github.com/ckeditor/ckeditor5/commit/b210e90c6cf84e662ef6c7daf93a92355a961bf2
- security-advisories@githubhttps://github.com/ckeditor/ckeditor5/security/advisories/GHSA-x9gp-vjh6-3wv6
Affected Packages
(2 across 1 ecosystem)
npm(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ckeditor5 | — | 45.2.2 | — |
| @ckeditor/ckeditor5-clipboard | — | 46.0.3 | — |
Frequently asked(5)
What is CVE-2025-58064?
CVE-2025-58064 is a low vulnerability published on September 4, 2025. CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. ckeditor5 and ckeditor5-clipboard versions 46.0.0 through 46.0.2 and 44.2.0 through 45.2.1 contain a Cross-Site Scripting (XSS) vulnerability. Ability to exploit could be triggered by a specific user action (leading to…
When was CVE-2025-58064 disclosed?
CVE-2025-58064 was first published in the National Vulnerability Database on September 4, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-58064 actively exploited?
CVE-2025-58064 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-58064?
CVE-2025-58064 has a CVSS v3 base score of 2.3 (NVD).
How do I remediate CVE-2025-58064?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-58064, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-58064
Is Your Infrastructure Affected by CVE-2025-58064?
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