CVE-2026-3471
- Source
- https://cve.org/CVERecord?id=CVE-2026-3471
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3471.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-3471
- Published
- 2026-05-18T08:45:44Z
- Modified
- 2026-10-28T02:31:13Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Opening a window with {{javascript:alert()}} as URL causes crash in the Mattermost Desktop App
- Details
-
Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated crash the application via calling {{window.open('javascript:alert()');}}. Mattermost Advisory ID: MMSA-2026-00618
- Database specific
{ "cna_assigner": "Mattermost", "cwe_ids": [ "CWE-939" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3471.json", "unresolved_ranges": [ { "extracted_events": [ { "range": [ { "last_affected": "6.0.1" }, { "last_affected": "5.4.13" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" } ] } ] }- References
Affected packages
Git / github.com/mattermost/desktop
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/desktop
- Events
-
IntroducedLast AffectedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*", "range": [ { "introduced": "6.0.0" }, { "last_affected": "6.0.1" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*", "range": [ { "introduced": "6.1.0" }, { "fixed": "6.2.0" } ], "source": "CPE_RANGE" } ] }