BIT-mastodon-2023-42452

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/mastodon/BIT-mastodon-2023-42452.json
JSON Data
https://api.test.osv.dev/v1/vulns/BIT-mastodon-2023-42452
Aliases
Published
2024-03-06T10:55:46.292Z
Modified
2026-03-20T10:01:50.365399Z
Summary
Mastodon vulnerable to Stored XSS through the translation feature
Details

Mastodon is a free, open-source social network server based on ActivityPub. In versions on the 4.x branch prior to versions 4.0.10, 4.2.8, and 4.2.0, under certain conditions, attackers can abuse the translation feature to bypass the server-side HTML sanitization, allowing unescaped HTML to execute in the browser. The impact is limited thanks to Mastodon's strict Content Security Policy, blocking inline scripts, etc. However a CSP bypass or loophole could be exploited to execute malicious XSS. Furthermore, it requires user interaction, as this can only occur upon clicking the “Translate” button on a malicious post. Versions 4.0.10, 4.2.8, and 4.2.0 contain a patch for this issue.

Database specific
{
    "cpes": [
        "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:joinmastodon:mastodon:4.2.0:beta1:*:*:*:*:*:*",
        "cpe:2.3:a:joinmastodon:mastodon:4.2.0:beta2:*:*:*:*:*:*",
        "cpe:2.3:a:joinmastodon:mastodon:4.2.0:beta3:*:*:*:*:*:*",
        "cpe:2.3:a:joinmastodon:mastodon:4.2.0:rc1:*:*:*:*:*:*"
    ],
    "severity": "Medium"
}
References

Affected packages

Bitnami / mastodon

Package

Name
mastodon
Purl
pkg:bitnami/mastodon

Severity

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

Affected ranges

Type
SEMVER
Events
Introduced
4.0.0
Fixed
4.0.10
Introduced
4.1.0
Fixed
4.1.8

Database specific

source
"https://github.com/bitnami/vulndb/tree/main/data/mastodon/BIT-mastodon-2023-42452.json"