CISCO Security Advisory
Published Date: May 6, 2026
CVE: CVE-2026-20219
Advisory Summary
Cisco has resolved a medium-severity security vulnerability (CVE-2026-20219) affecting the REST API of its Slido service. This insecure direct object reference flaw could have permitted an authenticated remote attacker to access other users’ social profile data or manipulate quiz and poll outcomes via crafted API requests.
Crucially, Cisco has remediated the vulnerability within the Slido platform, and no action is required by customers—there is no need to update any on-premises software or devices. No effective workaround exists outside Cisco’s fix, underscoring the importance of timely vendor patching for cloud-hosted services.
For IT security teams and infrastructure professionals, this serves as a timely reminder to monitor integrated SaaS components and APIs for potential indirect risks to user data integrity and confidentiality.
- Data Exposure Risk: User social profiles
- Data Integrity Risk: Poll and quiz result manipulation
- Exploitation Vector: Authenticated API access with crafted requests
Stay vigilant about vendor advisories and integrate ongoing risk assessments for API-driven interactive technologies critical to user engagement.
-2026-20219
Reference: Vendor Advisory