XSS in Selectzero

CVE-2025-52217

SelectZero Data Observability Platform before 2025.5.2 is vulnerable to HTML Injection. Legacy UI fields improperly handle user-supplied input, allowing injection of arbitrary HTML.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (9.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-52217?
CVE-2025-52217 is a medium-severity vulnerability in Selectzero, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-08-26.
How severe is CVE-2025-52217?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-52217 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.