CVE-2026-28219Disclosure(discourse / discourse)

LOWCVSS 4.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, an improper authorization check in the topic management logic allows authenticated users to modify privileged attributes of their topics. By manipulating specific parameters in a PUT or POST request, a regular user can elevate a topic’s status to a site-wide notice or banner, bypassing intended administrative restrictions. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. There are no practical workarounds to prevent this behavior other than applying the security patch. Administrators concerned about unauthorized promotions should audit recent changes to site banners and global notices until the fix is deployed.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-915

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • discourse

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
Products
discourse

1 version affected across 1 product

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-02-27: 2Technical Details · 2026-02-27: 202-27
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-28219 Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, an improper authorization check in the topic management logic al… https://www.cve.org/CVERecord?id=CVE-2026-28219

    Post summary

    CVE-2026-28219 is disclosed as an improper authorization check in Discourse's topic management logic prior to specific versions, but no PoC, exploit, or patch information is provided.

    00000154
    56.6K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-28219 Unauthorized Topic Attribute Modification in Discourse Versions Prior to 2026.2.0 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-28219

    Post summary

    CVE-2026-28219 describes an unauthorized topic attribute modification vulnerability affecting Discourse versions before 2026.2.0, but the provided text offers no evidence of PoC, exploit code, or patch details.

    0000030
    4.0K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appdiscoursediscourse---
Appdiscoursediscourse2026.2.0--

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