CVE-2026-100870CWE-640

CVE-2026-100870

High · published September 27, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
22.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00311 · 22.7th percentile
Weakness
CWE-640 · Weak Password Recovery Mechanism for Forgotten Password
Published
2026-09-27T17:16Z
References (6)
https://github.com/Sylius/Sylius · [email protected]https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480 · [email protected]https://github.com/Sylius/Sylius/pull/19215 · [email protected]https://github.com/Sylius/Sylius/releases/tag/v2.2.9 · [email protected]https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq · [email protected]https://www.vulncheck.com/advisories/sylius-before-1.12.25-1.13.17-1.14.20-2.1.16-and-2.2.9-admin-password-reset-poisoning-via-host-header · [email protected]
EPSS history
Timeline
  • 29 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 27 SEP 13:09Z
    Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 Admin Password Reset Poisoning via Host Header
    cvelistv5