PatchTheCVECVE-2020-9758: An issue was discovered in chat.php in LiveZilla Live Chat 8.0.1.3 (Helpdesk)
CVE-2020-9758 is a critical-severity flaw (CVSS 9.6) affecting livezilla. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An issue was discovered in chat.php in LiveZilla Live Chat 8.0.1.3 (Helpdesk). A blind JavaScript injection lies in the name parameter. Triggering this can fetch the username and passwords of the helpdesk employees in the URI. This leads to a privilege escalation, from unauthenticated to user-level access, leading to full account takeover. The attack fetches multiple credentials because they are stored in the database (stored XSS). This affects t
Why this priority
- Critical severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.6 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 2.5% (top 15%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2020-03-09 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-9758?
livezilla: upgrade to 8.0.1.3. Exact commands for each OS are on this page.
Is CVE-2020-9758 being exploited?
CVE-2020-9758 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-9758 affect?
CVE-2020-9758 affects livezilla. Severity is critical (CVSS 9.6). An issue was discovered in chat.php in LiveZilla Live Chat 8.0.1.3 (Helpdesk). A blind JavaScript injection lies in the name parameter. Triggering this can fetch the username and passwords of the helpdesk employees in the URI. This leads to
How urgent is CVE-2020-9758?
Priority 55/100. Critical severity
Software pages
Related CVEs
- CVE-2019-12964 MEDIUM 6.1 UPGRADE LiveZilla Server before 8.0.1.1 is vulnerable to XSS in the ticket.php Subject.
- CVE-2019-12963 MEDIUM 6.1 UPGRADE LiveZilla Server before 8.0.1.1 is vulnerable to XSS in the chat.php Create Ticket Action.
- CVE-2019-12962 MEDIUM 6.1 UPGRADE LiveZilla Server before 8.0.1.1 is vulnerable to XSS in mobile/index.php via the Accept-Language HTTP header.
- CVE-2019-12961 HIGH 8.8 UPGRADE LiveZilla Server before 8.0.1.1 is vulnerable to CSV Injection in the Export Function.
- CVE-2019-12960 CRITICAL 9.8 UPGRADE LiveZilla Server before 8.0.1.1 is vulnerable to SQL Injection in functions.internal.build.inc.php via the par