Cyber Resilience

CVE-2025-41035

Path Traversal in Apprain 4.0.5

Published
04 September 2025
Modified
17 June 2026
CVSS Score v4 7.1
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0061 46th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2025-41035 is a high-severity Path Traversal (CWE-22) vulnerability in Apprain Apprain. Its CVSS base score is 7.1 (High).

Operationally, ranked at the 46th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

A problem has been discovered in appRain CMF 4.0.5. An authenticated Path Traversal vulnerability in /apprain/common/download/ allows remote users to bypass the intended SecurityManager restrictions and download any file if they have adequate permissions outside the document root configured on…

more

the server via the base64 path after /download/.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-37218Shared CWE-22
CVE-2026-41655Shared CWE-22
CVE-2025-7712Shared CWE-22
CVE-2020-4430Shared CWE-22
CVE-2021-47977Shared CWE-22
CVE-2024-3980Shared CWE-22
CVE-2026-32805Shared CWE-22
CVE-2023-32167Shared CWE-22
CVE-2025-9963Shared CWE-22
CVE-2024-34060Shared CWE-22

Affected Assets

apprain
apprain
4.0.5

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-10 Information Input Validation
  • AC-3 Access Enforcement
  • AC-6 Least Privilege
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V5.3.2

Mitigating Controls (NIST 800-53 r5) AI

prevent

Validates the base64-encoded path parameter in /download/ to reject traversal sequences that escape the configured document root.

prevent

Enforces the SecurityManager access policy so that even authenticated users cannot retrieve files outside the intended directory.

prevent

Limits the permissions granted to authenticated users, reducing the set of files that could be reached via a successful path traversal.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-02 partial match
prevents

Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.

PR.AA-05 none match
prevents

PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Security testing in development catches path traversal via static/dynamic analysis.

prevents

Secure SDLC mandates input validation and path sanitization that directly prevent path traversal.

prevents

Application security requirements include rules for safe file handling and canonicalization.

prevents

Secure architecture principles require least-privilege file access and directory isolation.

prevents

Secure coding standards explicitly forbid unsafe path construction and mandate safe APIs.

mitigates

Information access restriction limits which files an application may read or write.

References