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 Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Sylius Sylius unaffected
Version Status Constraints
1.12.0 affected < 1.12.25
1.13.0 affected < 1.13.17
1.14.0 affected < 1.14.20
2.0.0 affected < 2.1.16
2.2.0 affected < 2.2.9

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Sylius Subscribe
Sylius Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Sylius/Sylius cve-icon cve-icon
https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480 cve-icon cve-icon
https://github.com/Sylius/Sylius/pull/19215 cve-icon cve-icon
https://github.com/Sylius/Sylius/releases/tag/v2.2.9 cve-icon cve-icon
https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq cve-icon cve-icon
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 cve-icon cve-icon
History

Sun, 27 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Description 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.
Title 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
First Time appeared Sylius
Sylius sylius
Weaknesses CWE-640
CPEs cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
Vendors & Products Sylius
Sylius sylius
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-27T13:09:54.715Z

Reserved: 2026-09-27T00:20:54.408Z

Link: CVE-2026-100870

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-27T13:16:38.240

Modified: 2026-09-27T13:16:38.240

Link: CVE-2026-100870

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses