Cyber Resilience

CVE-2026-28800

Auth Bypass in Natroteam Natro Macro ≤ 1.1.0

Published
06 March 2026
Modified
10 March 2026
Patch / advisory
CVSS Score v3.1 6.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0021 12th percentile
Risk Priority 46 floored blend · peak EPSS

Summary

CVE-2026-28800 is a medium-severity Path Traversal (CWE-22) vulnerability in Natroteam Natro Macro. Its CVSS base score is 6.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique External Remote Services (T1133); ranked at the 12th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and IA-2 (Identification and Authentication (Organizational Users)) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2026-28800 affects Natro Macro, an open-source Bee Swarm Simulator macro written in AutoHotkey, in versions prior to 1.1.0. The vulnerability arises from the use of Discord Remote Control in non-private channels, which improperly grants broad access to users with message-sending permissions in those channels. This flaw is classified under CWE-22 (Path Traversal), CWE-287 (Improper Authentication), and CWE-434 (Unrestricted Upload of File with Dangerous Type), with a CVSS v3.1 base score of 6.4 (AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H). The issue was published on 2026-03-06.

An attacker who has permission to send messages in a Discord channel where the victim has configured Remote Control can exploit this vulnerability. Exploitation requires the victim to have user interaction, such as approving the remote control session, and involves high attack complexity and high privileges on the attacker's side within the Discord context. Successful exploitation allows the attacker full control over the victim's computer, including simulating keyboard and mouse inputs as well as complete file system access.

The GitHub security advisory at https://github.com/NatroTeam/NatroMacro/security/advisories/GHSA-ph9r-2qjm-ghvg confirms that the issue has been addressed in Natro Macro version 1.1.0, recommending users upgrade to the patched version to mitigate the risk.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Natro Macro is an open-source Bee Swarm Simulator macro written in AutoHotkey. Prior to version 1.1.0, anyone with Discord Remote Control set up in a non-private channel gives access to any user with the permission to send message in said…

more

channel access to do anything on their computer. This includes keyboard and mouse inputs and full file access. This issue has been patched in version 1.1.0.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1133 External Remote Services Persistence
Adversaries may leverage external-facing remote services to initially access and/or persist within a network.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1505 Server Software Component Persistence
Adversaries may abuse legitimate extensible development features of servers to establish persistent access to systems.
T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
T1040 Network Sniffing Credential Access
Adversaries may passively sniff network traffic to capture information about an environment, including authentication material passed over the network.
T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-28962Shared CWE-287, CWE-434
CVE-2024-27923Shared CWE-287, CWE-434
CVE-2025-7114Shared CWE-287, CWE-434
CVE-2023-30945Shared CWE-22, CWE-287
CVE-2023-30967Shared CWE-22, CWE-287
CVE-2024-28992Shared CWE-22, CWE-287
CVE-2023-7309Shared CWE-22, CWE-434
CVE-2026-9102Shared CWE-22, CWE-434
CVE-2026-54414Shared CWE-22, CWE-434
CVE-2023-28833Shared CWE-22, CWE-434

Affected Assets

natroteam
natro macro
≤ 1.1.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 8 hardening rules · 5 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V5.3.2
  • V6.4.4
  • V6.5.4
  • V6.5.5

Mitigating Controls (NIST 800-53 r5) AI

Mandates unique identification and authentication of organizational users before access, directly stopping improper authentication.

Requires unique identification and authentication of devices before establishing connections, preventing unauthenticated device claims.

Mandates unique identification and authentication of non-organizational users, directly addressing the weakness for external actors.

Enforces the intended directory access authorizations that path traversal would otherwise bypass.

Manages authenticators with verification and secure distribution, reducing opportunities for improper authentication.

Input validation directly neutralizes special path elements before pathname construction occurs.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-03 mostly match
prevents

PR.AA-03 directly enforces authentication mechanisms that eliminate most improper-authentication defects, yet CWE-287 spans additional vectors (missing checks, flawed protocols, session handling) that one control does not fully close.

PR.AA-04 mostly match
prevents

PR.AA-04 directly enables verification of identity assertions (mostly preventing CWE-287 in that scope) yet leaves many other authentication failure modes unaddressed (only partial prevention overall).

PR.PS-05 mostly match
prevents

Restricting execution of unauthorized software directly blocks dangerous uploaded files from running.

PR.AA-01 partial match
prevents

PR.AA-01 supplies and governs credentials/tokens that authentication relies on, removing some weak-credential cases, yet leaves verification logic, missing checks, and protocol flaws untouched.

PR.AA-02 partial match
prevents

PR.AA-02 ensures valid enrollment and unique credential binding, which reduces some improper-auth risks at issuance time but leaves runtime claim verification untouched, so each direction only partially addresses the other.

PR.PS-01 partial match
prevents

PR.PS-01 can enforce auth-related settings via hardened baselines and default reviews, blocking some config-based instances of CWE-287, yet leaves code-level auth flaws untouched so neither direction reaches mostly.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Requiring authentication methods whose strength matches the sensitivity of the data and mandating multi-factor authentication directly blocks attempts to access resources without proving identity.

prevents

Verifying user identity before issuing replacement credentials and forcing changes after compromise reduces the likelihood that authentication bypass can be achieved through stolen or weak credentials.

finds

Security testing in development catches path traversal via static/dynamic analysis.

prevents

Mandating segregated approval and oversight for non-human identities reduces the chance that weak or orphaned credentials can be exploited for unauthorized authentication.

mitigates

Requiring authentication mechanisms and technical parameters for secure connections ensures that network services verify user identity before granting access, preventing exploitation of missing or weak authentication.

prevents

Secure SDLC mandates input validation and path sanitization that directly prevent path traversal.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Oracle Linux 8 (1 rule)
  • V-248827 OL 8 must not have the rsh-server package installed. prevents CWE-287
RHEL 7 (3 rules)
  • V-204425 The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using an empty password. prevents CWE-287
  • V-204442 The Red Hat Enterprise Linux operating system must not have the rsh-server package installed. prevents CWE-287
  • V-204424 The Red Hat Enterprise Linux operating system must not allow accounts configured with blank or null passwords. prevents CWE-287
RHEL 8 (1 rule)
  • V-230492 RHEL 8 must not have the rsh-server package installed. prevents CWE-287
Ubuntu 22.04 (1 rule)
  • V-260470 Ubuntu 22.04 LTS, when booted, must require authentication upon booting into single-user and maintenance modes. prevents CWE-287
Ubuntu 24.04 (2 rules)
  • V-270675 Ubuntu 24.04 LTS when booted must require authentication upon booting into single-user and maintenance modes. prevents CWE-287
  • V-270714 Ubuntu 24.04 LTS must not allow accounts configured in Pluggable Authentication Modules (PAM) with blank or null passwords. prevents CWE-287

References