CVE-2021-27760— HCL Notes 11.0 - 11.0.1 FP4 Sametime Embedded chat clients are vulnerable to group chats loading script on restart
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I. Basic Information for CVE-2021-27760
Vulnerability Information
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Vulnerability Title
HCL Notes 11.0 - 11.0.1 FP4 Sametime Embedded chat clients are vulnerable to group chats loading script on restart
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in the Sametime chat feature in the Notes 11.0 - 11.0.1 FP4 clients. An authenticated Sametime chat user could cause Remote Code Execution on another chat client by sending a specially formatted message through chat containing Javascript code.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
HCL Technologies Notes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HCL Technologies Notes是印度HCL Technologies公司的一款电子邮件软件。该软件支持访问电子邮件、日历和联系人等。 HCL Technologies Notes 11.0 - 11.0.1 FP4 客户端存在安全漏洞，该漏洞源于在重新启动时容易受到群聊加载脚本的攻击，会导致在另一个聊天客户端上执行远程代码。
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 |
|---|---|---|---|---|
| HCL Software | HCL Notes | 11.0 - 11.0.1 FP4 | - |
II. Public POCs for CVE-2021-27760
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · HCL Software · 2022-05-06 · 10 CVEs total
| CVE-2021-27764 | 7.4 HIGH | HCL BigFix WebUI Cookie missing attributes |
| CVE-2021-27765 | 6.7 MEDIUM | HCL BigFix Platform Server API is affected by Privilege Escalation Vulnerability |
| CVE-2021-27766 | 6.7 MEDIUM | HCL BigFix Platform Client is affected by a Privilege Escalation Vulnerability |
| CVE-2021-27767 | 6.7 MEDIUM | HCL BigFix Platform Console is affected by a Privilege Escalation Vulnerability |
| CVE-2021-27761 | 4.8 MEDIUM | HCL BigFix Platform is affected by weak web transport security |
| CVE-2021-27762 | 4.7 MEDIUM | HCL BigFix Platform is affected by misconfigured security-related HTTP headers |
| CVE-2021-27751 | 4.4 MEDIUM | HCL Commerce is affected by an Insufficient Session Expiration vulnerability. |
| CVE-2021-27758 | 4.3 MEDIUM | HCL BigFix Platform 跨站请求伪造漏洞 |
| CVE-2021-27759 | 2.3 LOW | HCL Technologies BigFix Platform 数据伪造问题漏洞 |
IV. Related Vulnerabilities
Same vendor: HCL Software
- CVE-2025-31974
HCL BigFix Service Management (SM) is susceptible to a Root - CVE-2025-31976
HCL BigFix Service Management (SM) is vulnerable to insuffic - CVE-2025-31978
HCL BigFix Service Management (SM) does not adequately sanit - CVE-2025-31959
HCL BigFix Service Management (SM) application fails to stri - CVE-2025-31982
HCL BigFix Service Management (SM) had directories that were
Same weakness: CWE-20
V. Comments for CVE-2021-27760
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