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No exploitation reportedFix available

CVE-2020-15803

No exploitation reported by the sources we read.

  • Published2020-07-17
  • WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2020-07-1703:15CVE publishedNVD
  2. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Versions per branch

NVD
Zabbix
BranchAffectedFixed in
3.0≤ 3.0.31no fix published
4.0≥ 4.0.0, ≤ 4.0.21no fix published
4.4≥ 4.4, ≤ 4.4.9no fix published
5.0≥ 5.0.0, ≤ 5.0.1no fix published
3.0= 3.0.32no fix published
4.0= 4.0.22no fix published
4.4= 4.4.10no fix published
5.0= 5.0.2no fix published
Fedoraproject fedora
BranchAffectedFixed in
31.x= 31no fix published
32.x= 32no fix published
Opensuse leap
BranchAffectedFixed in
15.1= 15.1no fix published
15.2= 15.2no fix published

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • zabbixUbuntu:Pro:20.04:LTSall versions · fixed in 1:4.0.17+dfsg-1ubuntu0.1~esm1
  • zabbixUbuntu:Pro:18.04:LTSall versions · fixed in 1:3.0.12+dfsg-1ubuntu0.1~esm2
  • zabbixUbuntu:Pro:18.04:LTSall versions · fixed in 1:3.0.12+dfsg-1ubuntu0.1~esm3
  • zabbixUbuntu:Pro:16.04:LTSall versions · fixed in 1:2.4.7+dfsg-2ubuntu2.1+esm2
  • zabbixUbuntu:Pro:16.04:LTSall versions · fixed in 1:2.4.7+dfsg-2ubuntu2.1+esm3
  • zabbixUbuntu:Pro:14.04:LTSall versions · fixed in 1:2.2.2+dfsg-1ubuntu1+esm4
  • zabbixSUSE:Package Hub 15 SP2all versions · fixed in 3.0.31-bp152.2.3.1
  • zabbixSUSE:Package Hub 15 SP1all versions · fixed in 3.0.31-bp152.2.3.1

11 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published
2020-07-17
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-79cm-2gxq-7x9r

Frequently asked questions

What is 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.

Is CVE-2020-15803 actively exploited?

Active exploitation of CVE-2020-15803 has not been confirmed. Its EPSS score was 32.3% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-15803?

CVE-2020-15803 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

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