GHSA-5rmx-256w-8mj9 · 深刻度: high · エコシステム: go — WireGuard Portal is Vulnerable to Privilege Escalation via User Self-Update to Admin Level
WireGuard Portal (or wg-portal) is a web-based configuration portal for WireGuard server management. Prior to version 2.1.3, any authenticated non-admin user can become a full administrator by sending a single PUT request to their own user profile endpoint with `"IsAdmin": true` in the JSON body. After logging out and back in, the session picks up admin privileges from the database. When a user updates their own profile, the server parses the full JSON body into the user model, including the `IsAdmin` boolean field. A function responsible for preserving calculated or protected attributes pins certain fields to their database values (such as base model data, linked peer count, and authentication data), but it does not do this for `IsAdmin`. As a result, whatever value the client sends for `IsAdmin` is written directly to the database. After the exploit, the attacker has full admin access to the WireGuard VPN management portal. The problem was fixed in v2.1.3. The docker images for the tag 'latest' built from the master branch also include the fix.
総合評価: CVE-2026-27899 は中リスク(43.1/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.31%、22 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.07% | 0.31% | +0.24% |
| 2 | 2026-02-26 | — | 0.07% | — |
EPSS の全履歴 (全 2 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
GHSA-5rmx-256w-8mj9 · 深刻度: high · エコシステム: go — WireGuard Portal is Vulnerable to Privilege Escalation via User Self-Update to Admin Level
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| wgportal | wireguard_portal | < 2.1.3 | cpe:2.3:a:wgportal:wireguard_portal:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/h44z/wg-portal/security/advisories/GHSA-5rmx-256w-8mj9 | Patch Vendor Advisory |