CVE Feed

    Dashboard / CVE / CVE-2021-27772

    CVE-2021-27772

    Users are able to read group conversations without actively taking part in them. Next to one to one conversations, users are able to start group conversations with multiple users. It was found possible to obtain the contents of these group conversations without being part of it. This could lead to information leakage where confidential information discussed in private groups is read by other users without the users knowledge.

    Published:May 12, 2022
    Last Modified:Nov 21, 2024
    EPS:May 12, 2022
    EPSS Score:0.0018
    CVSS Score:7.1

    Affected Products

    Vendor
    Hcltech
    Product
    Sametime

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-285 Improper Authorization

    Related CVEs

    CVE-2025-62320 (CVSS 4.7) — HTML Injection can be carried out in Product when a web application does not properly check or clean user inpu…
    CVE-2025-31966 (CVSS 2.7) — HCL Sametime is vulnerable to broken server-side validation. While the application performs client-side input …
    CVE-2026-21791 (CVSS 3.3) — HCL Sametime for Android is impacted by a sensitive information disclosure. Hostnames information is written …
    CVE-2026-21786 (CVSS 3.3) — HCL Sametime for iOS is impacted by a sensitive information disclosure. Hostnames information is written in a…
    CVE-2023-50355 (CVSS 3.6) — HCL Sametime is impacted by the error messages containing sensitive information. An attacker can use this inf…
    CVE-2024-30124 (CVSS 4) — HCL Sametime is impacted by insecure services in-use on the UIM client by default. An unused legacy REST servi…
    CVE-2024-30122 (CVSS 5.8) — HCL Sametime is impacted by misconfigured security related HTTP headers. It was identified that some HTTP head…
    CVE-2023-37540 (CVSS 3.9) — Sametime Connect desktop chat client includes, but does not use or require, the use of an Eclipse feature call…
    CVE-2023-45696 (CVSS 4) — Sametime is impacted by sensitive fields with autocomplete enabled in the Legacy web chat client. By default, …
    CVE-2023-45718 (CVSS 3.9) — Sametime is impacted by a failure to invalidate sessions. The application is setting sensitive cookie values …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High