CVE-2023-42452
- Source
- https://cve.org/CVERecord?id=CVE-2023-42452
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-42452.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-42452
- Aliases
-
- BIT-mastodon-2023-42452
- GHSA-2693-xr3m-jhqr
- Published
- 2023-09-19T15:58:44.559Z
- Modified
- 2026-07-15T01:48:56.305836922Z
- 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
- 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-rc2, 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-rc2 contain a patch for this issue.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/42xxx/CVE-2023-42452.json", "cwe_ids": [ "CWE-79" ], "cna_assigner": "GitHub_M" }- References
Affected packages
Git / github.com/mastodon/mastodon
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mastodon/mastodon
- Events
- Database specific
{ "cpe": [ "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:*:*:*:*:*:*" ], "source": [ "CPE_RANGE", "CPE_STRING", "REFERENCES" ], "extracted_events": [ { "introduced": "4.0.0" }, { "fixed": "4.0.10" }, { "introduced": "4.1.0" }, { "fixed": "4.1.8" }, { "introduced": "4.2.0-beta1" }, { "last_affected": "4.2.0-beta1" }, { "introduced": "4.2.0-beta2" }, { "last_affected": "4.2.0-beta2" }, { "introduced": "4.2.0-beta3" }, { "last_affected": "4.2.0-beta3" }, { "introduced": "4.2.0-rc1" }, { "last_affected": "4.2.0-rc1" } ] }