Script execution via unsanitized Multimedia introduction
Published Sep 8, 2026 · Updated Sep 9, 2026
Cross-site scripting in Silverpeas Core 6.4.6 and earlier allows remote attackers to execute script via a Multimedia introduction. The Multimedia library introduction accepts user-controlled content without neutralizing it before the application stores and renders it as HTML. A user must view the affected library page; the script runs in the portal's browser origin and can read or alter browser-accessible data.
Summary
What happened
Cross-site scripting in Silverpeas Core 6.4.6 and earlier allows remote attackers to execute script via a Multimedia introduction. The Multimedia library introduction accepts user-controlled content without neutralizing it before the application stores and renders it as HTML. A user must view the affected library page; the script runs in the portal's browser origin and can read or alter browser-accessible data.
The record
- CVE
- CVE-2026-78742
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- CVE-2026-78742 research proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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