CVE-2026-100870

HIGH CVSS 4.0: 8.7 EPSS 0.31%
Updated Sep 30, 2026
Sylius
Parameter Value
CVSS 8.7 (HIGH)
Affected Versions 1.12.0 — 2.2.9
Fixed In 1.12.25
Type CWE-640
Vendor Sylius
Public PoC No

Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 build administrator password-reset links using the request Host header without validation, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can request password resets for known administrator email addresses with forged Host headers to intercept valid reset tokens and take over administrator accounts.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 5

Configuration From (including) Up to (excluding)
Sylius Sylius
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
1.12.0 1.12.25
Sylius Sylius
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
1.13.0 1.13.17
Sylius Sylius
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
1.14.0 1.14.20
Sylius Sylius
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
2.0.0 2.1.16
Sylius Sylius
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
2.2.0 2.2.9