AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-4461

UNKNOWN · CVSS N/A EPSS 0.60% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-10-30 · Last synced 2026-08-04

CyberRota Analysis

This vulnerability has an unknown severity rating. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-4461
Severity
UNKNOWN
CVSS
N/A
EPSS
0.60%

Original NVD Description

Seeyon Zhiyuan OA Web Application System versions up to and including 7.0 SP1 improperly decode and parse the `enc` parameter in thirdpartyController.do. The decoded map values can influence session attributes without sufficient authentication/authorization checks, enabling attackers to assign a session to arbitrary user IDs. VulnCheck has observed this vulnerability being exploited in the wild as of 2025-10-30 at 00:30:40.855917 UTC.