HCL Sametime Proxy/Web Chat Client Meeting Chat clickjacking

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability has been found in HCL Sametime Proxy and Web Chat Client (Firewall Software) (the affected version is unknown) and classified as problematic. Affected by this vulnerability is an unknown code of the component Meeting Chat. The manipulation with an unknown input leads to a clickjacking vulnerability. The CWE definition for the vulnerability is CWE-451. The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks. As an impact it is known to affect integrity.

The weakness was disclosed 05/13/2022 as KB0097430. The advisory is shared at support.hcltechsw.com. This vulnerability is known as CVE-2021-27773 since 02/26/2021. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1566.003 for this issue.

Applying a patch is able to eliminate this problem.

The entries VDB-199735, VDB-199736, VDB-199737 and VDB-199776 are pretty similar.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.2
CNA Vector (HCL Software): 🔍



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Class: Clickjacking
CWE: CWE-451

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Patch
Status: 🔍

0-Day Time: 🔍


02/26/2021 🔍
05/13/2022 +440 days 🔍
05/13/2022 +0 days 🔍
05/15/2022 +2 days 🔍


Advisory: KB0097430
Status: Confirmed

CVE: CVE-2021-27773 (🔍)
See also: 🔍


Created: 05/13/2022 10:31 AM
Updated: 05/15/2022 04:19 PM
Changes: 05/13/2022 10:31 AM (49), 05/15/2022 04:12 PM (1), 05/15/2022 04:19 PM (1)
Complete: 🔍
Cache ID: 44:B6B:40


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