CVE-2026-28280

HIGH EPSS 13.3%
Published Feb 26, 20264mo ago · Modified Jun 17, 20261w ago
8.7 CVSS 3.1
High
Find Similar
Published Feb 26, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

osctrl is an osquery management solution. Prior to version 0.5.0, a stored cross-site scripting (XSS) vulnerability exists in the `osctrl-admin` on-demand query list. A user with query-level permissions can inject arbitrary JavaScript via the query parameter when running an on-demand query. The payload is stored and executes in the browser of any user (including administrators) who visits the query list page. This can be chained with CSRF token extraction to escalate privileges and take actions as the logged in user. An attacker with query-level permissions (the lowest privilege tier) can execute arbitrary JavaScript in the browsers of all users who view the query list. Depending on their level of access, it can lead to full platform compromise if an administrator executes the payload. The issue is fixed in osctrl `v0.5.0`. As a workaround, restrict query-level permissions to trusted users, monitor query list for suspicious payloads, and/or review osctrl user accounts for unauthorized administrators.

CVSS Details

Base Score
8.7
Exploitability
2.3
Impact
5.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
13.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
jmpsecosctrl* <0.5.0

References 3

  • github.com https://github.com/jmpsec/osctrl/pull/778
    Issue TrackingPatch
  • github.com https://github.com/jmpsec/osctrl/pull/780
    Issue TrackingPatch
  • github.com https://github.com/jmpsec/osctrl/security/advisories/GHSA-4rv8-5cmm-2r22
    MitigationPatchVendor Advisory

Remediation

  • github.com https://github.com/jmpsec/osctrl/pull/778
    Issue TrackingPatch
  • github.com https://github.com/jmpsec/osctrl/pull/780
    Issue TrackingPatch
  • github.com https://github.com/jmpsec/osctrl/security/advisories/GHSA-4rv8-5cmm-2r22
    MitigationPatchVendor Advisory