Vulnerability · Published Sep 18, 2026 · Assigned by GitHub_M
CVE-2026-81179SysReptor: Host header injection might allow account takeover
High 8.1
In plain English
A high-severity security flaw in sysreptor from Syslifters. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Official description
SysReptor is a fully customizable pentest reporting platform. Prior to 2026.58, installations that enable password reset by email while configuring ALLOWED_HOSTS with a wildcard accept an attacker-controlled Host header when generating a password reset link. An unauthenticated attacker can request a reset email whose link points to an attacker-controlled system, and a victim who follows that link can disclose the reset token, allowing the attacker to reset the victim's password and take over the account. Exploitation also requires a configured email gateway and an email address for the victim, while some reverse proxy configurations may reject the hostile Host header. This issue is fixed in version 2026.58.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Syslifters | sysreptor | < 2026.58 |
Weakness: CWE-807 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N