EUVD-2026-74260
GHSA-7fj6-249c-57j7
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CKEditor image upload in an enterprise CMS realistically requires a logged-in user, so PR:L is more accurate than the provided PR:N.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
3DescriptionCVE.org
Silverpeas Core <=6.4.6 is vulnerable to Cross Site Scripting (XSS) in the wysiwyg-CKEditor image upload feature.
AnalysisAI
Cross-site scripting in Silverpeas Core <=6.4.6 allows script injection through the CKEditor WYSIWYG image upload feature, executing attacker-controlled JavaScript in victims' browsers. The scope-changed (S:C) vector confirms the injected script runs in a different origin context, enabling session theft, credential harvesting, or malicious UI redirection against authenticated platform users. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The CKEditor WYSIWYG image upload feature must be accessible and enabled in the Silverpeas Core deployment. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) yields a base score of 6.1 (Medium). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch or specific fixed version is identified in the available data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
Leaving vuln.today