What is the CVSS score of CVE-2025-66561?

CVE-2025-66561 has a CVSS 3.1 base score of 7.3 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Sysreptor are affected by CVE-2025-66561?

SysReptor versions prior to 2025.102 contain a stored XSS vulnerability that allows authenticated users to inject malicious JavaScript affecting other users of the pentest reporting platform,…. A patch is available.

How to fix or mitigate CVE-2025-66561?

Within 24 hours: Identify all SysReptor instances and document current versions. Within 7 days: Upgrade all SysReptor deployments to version 2025.102 or later; test file upload restrictions in staging environment before production deployment. Within 30 days: Conduct audit of file uploads from past 90 days and review access logs for suspicious JavaScript file uploads; implement additional input validation on uploaded files.

Sysreptor CVE-2025-66561

EUVD-2025-201321 HIGH

Cross-site Scripting (XSS) (CWE-79)

2025-12-04 security-advisories@github.com

XSS Sysreptor

7.3

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.3 HIGH

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 06:23 EUVD-patch-fix

executive_summary

Re-analysis Queued

Apr 16, 2026 - 05:29 backfill_euvd_patch

patch_released

Patch available

Apr 16, 2026 - 05:29 EUVD

2025.102

EUVD ID Assigned

Mar 15, 2026 - 16:35 euvd

EUVD-2025-201321

Analysis Generated

Mar 15, 2026 - 16:35 vuln.today

CVE Published

Dec 04, 2025 - 23:15 nvd

HIGH 7.3

DescriptionGitHub Advisory

SysReptor is a fully customizable pentest reporting platform. Prior to 2025.102, there is a Stored Cross-Site Scripting (XSS) vulnerability allows authenticated users to execute malicious JavaScript in the context of other logged-in users by uploading malicious JavaScript files in the web UI. This vulnerability is fixed in 2025.102.