BIT-discourse-2026-72720

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2026-72720.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-discourse-2026-72720
Aliases
Published
2026-08-17T05:44:18.972Z
Modified
2026-08-17T08:10:29.555933473Z
Summary
Discourse: HTML injection in PrettyText.format_for_email from cooked-attribute reparsing
Details

Discourse is an open-source discussion platform. Prior to 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0, Discourse has HTML injection in PrettyText.formatforemail because cooked attribute values are reparsed as markup. Crafted Vimeo iframe sources, secure-upload URLs or dimensions, and hashtag data-slug values can cause decoded attribute text to be reinterpreted as HTML. The vulnerable conversion also fails to strictly validate the Vimeo iframe host and path, allowing non-Vimeo allowlisted iframes to be converted. 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

  • 6.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N 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-2026-72720.json"