Persistent XSS in blocked messages
Priority LOW 29CWE-83Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Improper Neutralization of Script in Attributes in a Web Page vulnerability in Forcepoint Email Security (Blocked Messages module) allows Stored XSS. This issue affects Email Security through 8.5.5.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00233 14th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Forcepoint | Email Security | up to 8.5.5 | — | No fix listed | CNA |
- Email Security VendorForcepoint Affected up to 8.5.5 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-9103
- 2026-10-03 Alias added: GHSA-229f-x33g-7vx4
References
More Forcepoint vulnerabilities
- TI-2018-11860 Out-of-bounds write in Forcepoint Email Security CVSS 3.1CRITICAL 9.8
- TI-2019-04348 Unrestricted file upload in Forcepoint User ID server CVSS 3.1CRITICAL 9.8
- TI-2019-04349 Improper access control in Forcepoint Email Security CVSS 3.1CRITICAL 9.8
- TI-2018-11859 Weak password recovery in Forcepoint Email Security CVSS 3.1CRITICAL 9.8
- TI-2022-01566 XML external entity injection in Forcepoint Data Loss Prevention CVSS 3.1CRITICAL 9.8
- TI-2023-05920 Cross-site scripting in Forcepoint Web Security CVSS 3.1CRITICAL 9.6
Sources
- CVE-2024-9103 · CVE Program
- CVE-2024-9103 · NVD
- FIRST EPSS
- GHSA-229f-x33g-7vx4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences