CVE-2025-48936 | ZITADEL Allows Account Takeover via Malicious X-Forwarded-Proto Header Injection

Zitadel is open-source identity infrastructure software. Prior to versions 2.70.12, 2.71.10, and 3.2.2, a potential vulnerability exists in the password reset mechanism. ZITADEL utilizes the Forwarded or X-Forwarded-Host header from incoming requests to construct the URL for the password reset confirmation link. This link, containing a secret code, is then emailed to the user. If an attacker can manipulate these headers (e.g., via host header injection), they could cause ZITADEL to generate a password reset link pointing to a malicious domain controlled by the attacker. If the user clicks this manipulated link in the email, the secret reset code embedded in the URL can be captured by the attacker. This captured code could then be used to reset the user's password and gain unauthorized access to their account. This specific attack vector is mitigated for accounts that have Multi-Factor Authentication (MFA) or Passwordless authentication enabled. This issue has been patched in versions 2.70.12, 2.71.10, and 3.2.2.

Published: 2025-05-30 Last update: 2025-06-04 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-48936 is rated Moderate Risk (46.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.19%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-48936

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-26 0.06% 0.19% +0.13%
2 2026-02-02 0.05% 0.06% +0.01%
3 2026-01-03 0.05%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-48936

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 5.2 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.8 5.9 [email protected]

Weakness enumeration for CVE-2025-48936

GitHub Security Advisory for CVE-2025-48936

GHSA-93m4-mfpg-c3xf · Severity: high · Ecosystem: go — ZITADEL Allows Account Takeover via Malicious X-Forwarded-Proto Header Injection

Affected software / configurations for CVE-2025-48936

Vendor Product Version Raw CPE
zitadel zitadel >= 2.0.0, < 2.70.12 cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*
zitadel zitadel >= 2.71.0, < 2.71.11 cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*
zitadel zitadel >= 3.0.0, < 3.2.2 cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*

References for CVE-2025-48936

cvelogic Threat Intelligence