BIT-discourse-2026-72728

See a problem?
Import Source
https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2026-72728.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-discourse-2026-72728
Aliases
Published
2026-08-17T05:44:33.304Z
Modified
2026-08-17T08:10:32.297978705Z
Summary
Discourse: Onebox iframe origin allowlist enforces URL authority boundary
Details

Discourse is an open-source discussion platform. Prior to 2026.1.7, an authenticated user could submit specially formed URLs that bypassed the Onebox allowlist and embedded malicious content in a site. This issue is fixed in versions 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0.

Database specific 
{
    "severity": "Medium",
    "cpes": [
        "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"
    ]
}
References

Affected packages

Bitnami / discourse

Package

Name
discourse
Purl
pkg:bitnami/discourse

Severity

  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2026.1.7
Introduced
2026.6.0
Fixed
2026.6.2
Introduced
2026.7.0
Fixed
2026.7.1

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2026-72728.json"