CVE-2021-27770

MEDIUM

FaviconService - Info Disclosure

Title source: llm

Description

The vulnerability was discovered within the “FaviconService”. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the “meetings”-function where users can specify an external URL where the online meeting will take place.

Scores

CVSS v3 6.8
EPSS 0.0035
EPSS Percentile 57.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L

Classification

CWE
CWE-472
Status published

Affected Products (1)

hcltech/sametime

Timeline

Published May 12, 2022
Tracked Since Feb 18, 2026