CVSS 3.1
7.6 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:HCVE-2021-27771
High (7.6) in hcltech sametime. EPSS 0.7% chance of exploitation in the next 30 days.
User SID can be modified resulting in an Arbitrary File Upload or deletion of directories causing a Denial of Service. When interacting in a normal matter with the Sametime chat application, users hold a cookie containing their session ID (SID). This value is also used when sending chat messages, receiving notifications and/or transferring files.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-434, CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- hcltech:sametime