What’s Vulnerable › Vulnerabilities

CVE-2021-27773: HCL Sametime is vulnerable to clickjacking

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-12 · updated 2026-06-17
• Weakness: CWE-451

Description

This vulnerability allows users to execute a clickjacking attack in the meeting's chat.

Affected products

• HCL Software Sametime: 11.6

References

• https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430
• https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430

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