Cyber Resilience

CVE-2023-33405

Open Redirect in Blogengine.Net ≤ 3.3.8.0

Public PoCOpen Redirect
Published
21 June 2023
Modified
06 December 2024
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 0.31 98th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2023-33405 is a medium-severity Open Redirect (CWE-601) vulnerability in Blogengine Blogengine.Net. Its CVSS base score is 6.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Phishing (T1566); 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-2023-33405 is an open redirect vulnerability, tracked as CWE-601, that affects Blogengine.net versions 3.3.8.0 and earlier. It received a CVSS v3.1 base score of 6.1 reflecting a network vector that requires no privileges but does require user interaction and produces a changed scope with limited confidentiality and integrity impact.

An unauthenticated attacker can supply a crafted URL that causes the application to redirect a victim to an arbitrary external destination. Successful exploitation can therefore be used to facilitate phishing or other social-engineering attacks that leverage the trust relationship between the user and the Blogengine.net site.

The associated EPSS score has remained essentially flat near 0.57 with a recorded peak of 0.5767, indicating no material post-disclosure increase in observed exploitation interest.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

Blogengine.net 3.3.8.0 and earlier is vulnerable to Open Redirect.

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise Techniques

T1566 Phishing Initial Access
Adversaries may send phishing messages to gain access to victim systems.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-22857Same product: Blogengine Blogengine.Net
CVE-2023-22856Same product: Blogengine Blogengine.Net
CVE-2023-33404Same product: Blogengine Blogengine.Net
CVE-2023-22858Same product: Blogengine Blogengine.Net
CVE-2026-24768Shared CWE-601
CVE-2025-34504Shared CWE-601
CVE-2023-46750Shared CWE-601
CVE-2024-24764Shared CWE-601
CVE-2025-8066Shared CWE-601
CVE-2024-35133Shared CWE-601

Affected Assets

blogengine
blogengine.net
≤ 3.3.8.0

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 mostly match
prevents

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.8.23 Web filtering partial match
mitigates

Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.

References