What is the CVSS score of CVE-2025-25477?

CVE-2025-25477 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.2%.

Which versions of Syspass are affected by CVE-2025-25477?

Organizations using A host header injection vulnerability in SysPass 3.2x face notable risk from CVE-2025-25477, a injection vulnerability rated CVSS 8.1.

Is there a public PoC exploit available for CVE-2025-25477?

Yes, a public proof-of-concept exploit is available for CVE-2025-25477. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-25477?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Syspass CVE-2025-25477

HIGH

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2025-02-28 cve@mitre.org

Code Injection Syspass

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:29 vuln.today

PoC Detected

Jul 09, 2025 - 19:30 vuln.today

Public exploit code

CVE Published

Feb 28, 2025 - 00:15 nvd

HIGH 8.1

DescriptionCVE.org

A host header injection vulnerability in SysPass 3.2x allows an attacker to load malicious JS files from an arbitrary domain which would be executed in the victim's browser.

AnalysisAI

A host header injection vulnerability in SysPass 3.2x allows an attacker to load malicious JS files from an arbitrary domain which would be executed in the victim's browser. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-74. A host header injection vulnerability in SysPass 3.2x allows an attacker to load malicious JS files from an arbitrary domain which would be executed in the victim's browser. Affected products include: Syspass.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

CVE-2025-25477 vulnerability details – vuln.today

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