CVE-2023-2808
- Source
- https://cve.org/CVERecord?id=CVE-2023-2808
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-2808.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-2808
- Published
- 2023-05-29T09:07:34.768Z
- Modified
- 2026-07-15T01:49:13.978138678Z
- Severity
-
- 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- Lack of URL normalization allows rendering previews for disallowed domains
- Details
-
Mattermost fails to normalize UTF confusable characters when determining if a preview should be generated for a hyperlink, allowing an attacker to trigger link preview on a disallowed domain using a specially crafted link.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/2xxx/CVE-2023-2808.json", "cwe_ids": [ "CWE-20" ], "unresolved_ranges": [ { "extracted_events": [ { "fixed": "7.1.9" }, { "fixed": "7.8.4" }, { "fixed": "7.9.3" } ], "source": "AFFECTED_FIELD" } ], "cna_assigner": "Mattermost" }- References
Affected packages
Git / github.com/mattermost/mattermost
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost
- Events
- Database specific
{ "cpe": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "source": "CPE_RANGE", "extracted_events": [ { "introduced": "5.34.0" }, { "fixed": "7.1.9" }, { "introduced": "7.2.0" }, { "fixed": "7.8.4" }, { "introduced": "7.9.0" }, { "fixed": "7.9.3" } ] }