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CVE Vulnerability Details :

CVE-2026-44783

PUBLISHED

More Info Official Page

Assigner-GitHub_M

Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa

Published At-12 Jun, 2026 | 20:23

Updated At-12 Jun, 2026 | 20:23

▼CVE Numbering Authority (CNA)

Discourse: Replying to a whisper lets non-whisperers create staff-only whisper posts

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, a flaw in how replies to whisper posts are handled allows authenticated users outside the groups configured in whispers_allowed_groups to post into a topic's staff-only whisper channel. The injected content is visible to whisperers (typically staff) alongside legitimate whispers. Only sites that have whispers enabled are affected. This issue has been patched in versions 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1.

Affected Products

Vendor

Civilized Discourse Construction Kit, Inc.

Product

discourse

Versions

Affected

>= 2026.1.0-latest, < 2026.1.4
>= 2026.3.0-latest, < 2026.3.1
>= 2026.4.0-latest, < 2026.4.1

Problem Types

Type	CWE ID	Description
CWE	CWE-284	CWE-284: Improper Access Control

Type: CWE

CWE ID: CWE-284

Description: CWE-284: Improper Access Control

Metrics

Version	Base score	Base severity	Vector
3.1	5.4	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Version: 3.1

Base score: 5.4

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Hyperlink	Resource
https://github.com/discourse/discourse/security/advisories/GHSA-98ch-mgfj-wqpw	x_refsource_CONFIRM

Hyperlink: https://github.com/discourse/discourse/security/advisories/GHSA-98ch-mgfj-wqpw

Resource:

x_refsource_CONFIRM

Affected Products

Affected

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Metrics

Metrics Other Info

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Replaced By

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References