CVE-2026-105294Legcord 1.1.0 through 1.3.0 Chromium Switch Injection via settings.setConfig
Updated under an hour ago ()
Does this affect you?
It affects Legcord. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.19%, higher than 8% of scored CVEs.
Do this next
Free account, 1 product
Legcord 1.1.0 through 1.3.0 contains a configuration injection vulnerability that allows script in the Discord page to write any config key via the window.legcord settings.setConfig bridge. Attackers exploiting a Discord XSS can set additionalArguments to persistently add --proxy-server and --ignore-certificate-errors switches, routing all client traffic through an interception proxy.
- CVSS
- 7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-15
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.19% (percentile 8)
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 5, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Legcord Legcord legcord:legcord (from the name) | from 1.1.0 through 1.3.0 | CNA record |
References
- https://github.com/Legcord/Legcord/issues/1163issue-tracking
- https://github.com/Legcord/Legcordproduct
- https://github.com/Legcord/Legcord/blob/v1.3.0/src/discord/ipc.ts#L296-L299technical-description
- https://github.com/Legcord/Legcord/blob/v1.3.0/src/main.ts#L277-L307technical-description
- https://www.vulncheck.com/advisories/legcord-1.1.0-through-1.3.0-chromium-switch-injection-via-settings-setconfigthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.