CVE-2019-19821
CWE-79Published: March 16, 2020· Updated: Jun 17, 2026
Official Description
A post-authentication privilege escalation in the web application of Combodo iTop allows regular authenticated users to access information and modify information with administrative privileges by not following the HTTP Location header in server responses. This is fixed in all iTop packages (community, essential, professional) in versions : 2.5.4, 2.6.3, 2.7.0
Technical Analysis
CVE-2019-19821 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.
From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (6)
Quick Facts
Related CVEs (CWE-79)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-19821 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts