CVE-2024-9103— Persistent XSS in blocked messages
Quick assessment
Affected
Forcepoint Email Security
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Forcepoint Email Security是美国Forcepoint公司的一套电子邮件保护解决方案。该产品包括垃圾邮件过滤、恶意软件检测、网络钓鱼防护和防止入侵 (BEC) 攻击等功能。 Forcepoint Email Security 8.5.5及之前版本存在安全漏洞，该漏洞源于Web页面属性中的脚本中和不当，可能导致存储型跨站脚本攻击。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2024-9103
Vulnerability Information
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Vulnerability Title
Persistent XSS in blocked messages
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
Web页面属性中脚本转义处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Forcepoint Email Security 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Forcepoint Email Security是美国Forcepoint公司的一套电子邮件保护解决方案。该产品包括垃圾邮件过滤、恶意软件检测、网络钓鱼防护和防止入侵 (BEC) 攻击等功能。 Forcepoint Email Security 8.5.5及之前版本存在安全漏洞，该漏洞源于Web页面属性中的脚本中和不当，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Forcepoint | Email Security | 0 ~ 8.5.5 | - |
|
II. Public POCs for CVE-2024-9103
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same vendor: Forcepoint
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CVE-2026-12974
Security Policy Bypass in Forcepoint Security Engine (NGFW) -
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Forcepoint One Endpoint 异常处理不当漏洞 -
CVE-2025-12694
Local Privilege Escalation in VPN Client -
CVE-2025-2274
Stored Cross Site Scripting in Forcepoint Web Security -
CVE-2025-12690
Local Privilege Escalation in NGFW Engine
Same weakness: CWE-83
-
CVE-2026-45118
MyBB: Contact page reflected XSS -
CVE-2026-15920
Potential cross-site scripting via URLField values in the ad -
CVE-2026-49276
Kirby: Self cross-site scripting (self-XSS) in the writer fi -
CVE-2026-48591
Stored XSS via unescaped HTML attribute values in earmark -
CVE-2026-53841
OpenClaw < 2026.5.12 - Cross-Site Scripting via Unsafe Markd
V. Comments for CVE-2024-9103
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