BIT-mybb-2020-15139

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/mybb/BIT-mybb-2020-15139.json
JSON Data
https://api.test.osv.dev/v1/vulns/BIT-mybb-2020-15139
Aliases
Published
2024-03-06T11:00:33.408Z
Modified
2024-03-06T11:25:28.861Z
Summary
[none]
Details

In MyBB before version 1.8.24, the custom MyCode (BBCode) for the visual editor doesn't escape input properly when rendering HTML, resulting in a DOM-based XSS vulnerability. The weakness can be exploited by pointing a victim to a page where the visual editor is active (e.g. as a post or Private Message) and operates on a maliciously crafted MyCode message. This may occur on pages where message content is pre-filled using a GET/POST parameter, or on reply pages where a previously saved malicious message is quoted. After upgrading MyBB to 1.8.24, make sure to update the version attribute in the codebuttons template for non-default themes to serve the latest version of the patched jscripts/bbcodes_sceditor.js file.

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

Affected packages

Bitnami / mybb

Package

Name
mybb
Purl
pkg:bitnami/mybb

Severity

  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
1.8.24