CVE-2023-32721: zabbix Improper Input Validation
CVSS: 7.6v3.1HighModified
AliasesUBUNTU-CVE-2023-32721DEBIAN-CVE-2023-32721
Published 12-10-2023Last modified 03-11-2025
Vulnerability summary
CVE-2023-32721 is a high (CVSS 7.6) Improper Input Validation vulnerability in zabbix. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 55.7% of scored vulnerabilities.
CVSS score
7.6/10
010
High · v3.1 (CVE.org)EPSS score
0.80%
0%100%
Low · +0.20 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 12-10-2023PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
A stored XSS has been found in the Zabbix web application in the Maps element if a URL field is set with spaces before URL.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 7.6Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:NSources4 sources · 5.4–7.6
- OSV · UbuntuEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
- OSV · DebianEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.80%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
+0.20 pp
From 0.60% on 19-09-2026
19-09-202619-10-2026
EPSS score0.80%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Affected systems
Debian1 product
- zabbixAll versions (No fix recorded) | < 1:6.0.23+dfsg-1
Ubuntu1 product
- zabbixAll versions (No fix recorded)
Zabbix1 product
- zabbix≥ 7.0.0alpha1, ≤ 7.0.0alpha3 | ≥ 4.0.0, ≤ 4.0.47 | ≥ 5.0.0, ≤ 5.0.36 | ≥ 6.0.0, ≤ 6.0.20 | ≥ 6.4.0, ≤ 6.4.5 | 7.0.0:alpha1 | 7.0.0:alpha2 | 7.0.0:alpha3
3 vendors · 3 products
References
6 links- support.zabbix.com/browse/ZBX-23389Vendor Advisory
