Security Resilience

CVE-2023-5375

Open Redirect in Mosparo ≤ 1.0.2

Public PoCOpen Redirect
Published
04 October 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 6.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.35 98th percentile
Risk Priority 67 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-5375 is a medium-severity Open Redirect (CWE-601) vulnerability in Mosparo Mosparo. Its CVSS base score is 6.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-5375 is an open redirect vulnerability, categorized under CWE-601, that affects the mosparo GitHub repository prior to version 1.0.2. The flaw received a CVSS v3.1 score of 6.1 with a vector indicating network attack vector, low attack complexity, no required privileges, required user interaction, and changed scope, resulting in limited impacts to confidentiality and integrity.

An unauthenticated attacker can exploit the issue by crafting a malicious URL that causes the application to redirect a victim user to an arbitrary external site. Successful exploitation could facilitate phishing or other social-engineering attacks that leverage the trust associated with the mosparo domain.

The referenced GitHub commit and huntr.dev bounty report document the fix that was merged to address the redirect logic; users are therefore advised to upgrade to mosparo 1.0.2 or later. The EPSS score reached a peak of 0.4921 and currently stands at 0.4330, indicating moderate and relatively stable exploitation interest since disclosure.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

Open Redirect in GitHub repository mosparo/mosparo prior to 1.0.2.

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
attack.mitre.org →
T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
attack.mitre.org →
T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
attack.mitre.org →
T1014 Rootkit Stealth
Adversaries may use rootkits to hide the presence of programs, files, network connections, services, drivers, and other system components.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-5687Same product: Mosparo Mosparo
CVE-2023-22264Shared CWE-601
CVE-2026-10837Shared CWE-601
CVE-2026-53437Shared CWE-601
CVE-2023-6812Shared CWE-601
CVE-2025-50067Shared CWE-601
CVE-2025-55207Shared CWE-601
CVE-2024-47648Shared CWE-601
CVE-2024-52003Shared CWE-601
CVE-2024-54255Shared CWE-601

Affected Assets

mosparo
mosparo
≤ 1.0.2

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.7.2

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

AT-2 Literacy Training and Awareness
addresses: CWE-601

Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.

SI-10 Information Input Validation
addresses: CWE-601

Validates redirect targets and URLs to ensure they conform to allowed destinations.

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-06 partial match
blocks

Secure SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.

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.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References