{"cve":"CVE-2020-15258","nvd":{"published":"2020-10-16T17:15:12.247","modified":"2026-06-17T02:56:22.627","status":"Modified","description":"In Wire before 3.20.x, `shell.openExternal` was used without checking the URL. This vulnerability allows an attacker to execute code on the victims machine by sending messages containing links with arbitrary protocols. The victim has to interact with the link and sees the URL that is opened. The issue was patched by implementing a helper function which checks if the URL's protocol is common. If it is common, the URL will be opened externally. If not, the URL will not be opened and a warning appears for the user informing them that a probably insecure URL was blocked from being executed. The issue is patched in Wire 3.20.x. More technical details about exploitation are available in the linked advisory.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","score":8.0},"cwes":["CWE-20"],"references":["https://benjamin-altpeter.de/shell-openexternal-dangers/","https://github.com/wireapp/wire-desktop/commit/b3705fffa75a03f055530f55a754face5ac0623b","https://github.com/wireapp/wire-desktop/security/advisories/GHSA-5gpx-9976-ggpm","https://benjamin-altpeter.de/shell-openexternal-dangers/","https://github.com/wireapp/wire-desktop/commit/b3705fffa75a03f055530f55a754face5ac0623b"],"products":["wire:wire"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2020-15258","score":0.02085,"percentile":0.81572,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}