CVE-2025-27236

Authenticated user-field disclosure via unauthorized API search

Published Oct 3, 2025 · Updated Oct 3, 2025

Incorrect authorization in affected Zabbix Frontend releases allows remote authenticated users to read restricted fields of users in their group. The user.get API method searches selected user fields even when the caller cannot view them, turning match results from repeated queries into a value oracle. A regular account and a same-group peer are required in 6.0.38 through 6.0.40, 7.0.9 through 7.0.16, 7.2.3 through 7.2.10, and 7.4.0; no data modification is reported.

CVSS severity2.1
Low
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Incorrect authorization in affected Zabbix Frontend releases allows remote authenticated users to read restricted fields of users in their group. The user.get API method searches selected user fields even when the caller cannot view them, turning match results from repeated queries into a value oracle. A regular account and a same-group peer are required in 6.0.38 through 6.0.40, 7.0.9 through 7.0.16, 7.2.3 through 7.2.10, and 7.4.0; no data modification is reported.

The record

CVE
CVE-2025-27236
Published
Oct 3, 2025
Updated
Oct 3, 2025
Vendor
Zabbix
Product
Zabbix
Classifications
CWE-863, T1087
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.0.38 <=6.0.40 changes=[{"at":"6.0.41","status":"unaffected"}]
  2. Affected versionversion=7.0.9 <=7.0.16 changes=[{"at":"7.0.17","status":"unaffected"}]
  3. Affected versionversion=7.2.3 <=7.2.10 changes=[{"at":"7.2.11","status":"unaffected"}]
  4. Affected versionversion=7.4.0 <7.4.1 changes=[{"at":"7.4.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Zabbix · Zabbixversion=6.0.38 <=6.0.40 changes=[{"at":"6.0.41","status":"unaffected"}]; version=7.0.9 <=7.0.16 changes=[{"at":"7.0.17","status":"unaffected"}]; version=7.2.3 <=7.2.10 changes=[{"at":"7.2.11","status":"unaffected"}]; version=7.4.0 <7.4.1 changes=[{"at":"7.4.1","status":"unaffected"}]

Published CVSS scores

2.1ZabbixCVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1087Account Discovery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo