// Proof of Concept Code
Exploit Repository
Proof of concept scripts for vulnerabilities I discovered and responsibly disclosed. All exploits were written to confirm impact during disclosure โ not for offensive use against systems you do not own.
Responsible Use
All PoC code here targets software I personally audited. These scripts were developed to confirm vulnerability impact during responsible disclosure to vendors. Only use these against systems you own or have explicit written authorization to test.
Available
fickling (Trail of Bits) HIGH ๐ ENCRYPTED
Private Disclosure Dossier โ fickling Pickle-Safety Bypasses
Encrypted record of fickling detection-bypass findings โ including two accepted High-severity (CVSS 8.8) pickle-safety RCE bypasses with CVEs pending โ plus a patched duplicate and a draft. AES-256-GCM, passphrase required to decrypt in-browser; nothing is sent anywhere.
Encrypted
โ
CVE-2026-111055 MODERATE
FOSSBilling โ once-per-client Promo Code Race via Concurrent Checkout
threading.Barrier synchronizes N concurrent POST /api/client/cart/checkout requests so the non-atomic per-client COUNT check passes in all of them before any redemption row is written โ one client redeems a once-per-client code on many orders.
Python 3
โ
CVE-2026-43921 HIGH
FOSSBilling โ PHP Code Injection via Config Serialization โ RCE
Authenticates as admin, injects a passthru() web shell into config.php via set_interface_ip(), then triggers code execution on any subsequent HTTP request. Demonstrates persistent RCE as www-data with no session required after injection.
Python 3
โ
CVE-2026-43925 MODERATE
FOSSBilling โ Mass Assignment in Guest Registration
Single curl command registers a client in an arbitrary client group by supplying group_id in the public registration POST body. Grants immediate access to group-restricted promo codes without any authentication or prior knowledge beyond a valid group ID.
Bash
โ
CVE-2026-43927 MODERATE
FOSSBilling โ TOCTOU Race Condition in Cart Checkout
Uses threading.Barrier to synchronize N concurrent checkout requests, maximizing race window overlap. Bypasses single-use or limited-use promo code restrictions โ a single-use code yields 10+ successful checkouts in typical testing.
Python 3
โ
Coming Soon
Akaunting โค 3.1.21
Settings Namespace Injection โ proc_open RCE via sendmail_path
Injects into email settings namespace via _prefix parameter to poison sendmail_path with shell metacharacters. Triggers on any outbound email. CVSS 9.9.
Coming soon
InvoiceNinja v5.13.19
SSRF via SMTP Check Endpoint โ Internal Port Oracle
Iterates over internal IP:port combinations, fingerprinting services by response timing and error message differences. Probes cloud metadata endpoints at 169.254.169.254.
Coming soon
Hikvision DS-K1T671M V3.7.60
No-Auth Config Export + Iris Enrollment + ONVIF Factory Reset
Combined PoC exercising three unauthenticated endpoints confirmed via binary analysis of hicore's no-auth URL whitelist at file offset 0x256380.
Coming soon
Graylog โค 7.1.7 (GHSA-73c3-3q9x-5wq3)
SSRF via URL Allowlist Redirect Bypass to Internal OpenSearch
Allowlists an attacker-controlled host that 302s to an internal target, then drives a lookup adapter through it to pull a value straight out of an unauthenticated internal OpenSearch API. CVSS 9.9.
Coming soon
Graylog โค 7.1.7 (GHSA-6r58-hv2p-fgx2)
Beats Input Decompression Bomb DoS
Sends concurrent small zlib-compressed Beats frames that each inflate to hundreds of megabytes server-side, sustaining an OutOfMemoryError storm with no authentication required.
Coming soon