SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-15803

Zabbix before 3.0.32rc1, 4.x before 4.0.22rc1, 4.1.x through 4.4.x before 4.4.10rc1, and 5.x before 5.0.2rc1 allows stored XSS in the URL Widget.

MEDIUM 6.1EPSS 32.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 32.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

Zabbix before 3.0.32rc1, 4.x before 4.0.22rc1, 4.1.x through 4.4.x before 4.4.10rc1, and 5.x before 5.0.2rc1 allows stored XSS in the URL Widget.

CVSS 3.1
6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
32.30% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
zabbix/zabbix · fedoraproject/fedora · debian/debian linux · opensuse/backports · opensuse/leap
Source
cve@mitre.org
EPSS trend
0%18%35%3 November 2026: 32.30%3 November 20263 November 2026

EPSS 32.3% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.