CVE-2019-12964: LiveZilla Server before 8.0.1.1 is vulnerable to XSS in the ticket.php Subject.

Q: How do I fix CVE-2019-12964?

livezilla: upgrade to 8.0.1.1. Exact commands for each OS are on this page.

Q: Is CVE-2019-12964 being exploited?

CVE-2019-12964 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-12964 affect?

CVE-2019-12964 affects livezilla. Severity is medium (CVSS 6.1). LiveZilla Server before 8.0.1.1 is vulnerable to XSS in the ticket.php Subject.

Q: How urgent is CVE-2019-12964?

Priority 41/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2019-12964 is a medium-severity flaw (CVSS 6.1) affecting livezilla. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

LiveZilla Server before 8.0.1.1 is vulnerable to XSS in the ticket.php Subject.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-06-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: livezilla

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-06-25 13:15 UTCPublished CVE record published
2026-06-17 02:15 UTCUpdated Record last modified

livezilla livezilla UPGRADE

Affected: < 8.0.1.1

Fixed in: 8.0.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy livezilla || rpm -q livezilla || livezilla --version

2. UPGRADE to 8.0.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade livezilla

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade livezilla

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2019-12964?

livezilla: upgrade to 8.0.1.1. Exact commands for each OS are on this page.

Is CVE-2019-12964 being exploited?

CVE-2019-12964 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-2019-12964 affect?

CVE-2019-12964 affects livezilla. Severity is medium (CVSS 6.1). LiveZilla Server before 8.0.1.1 is vulnerable to XSS in the ticket.php Subject.

How urgent is CVE-2019-12964?

Priority 41/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2020-9758 CRITICAL 9.6 UPGRADE An issue was discovered in chat.php in LiveZilla Live Chat 8.0.1.3 (Helpdesk)
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

References

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