Cyber Resilience

CVE-2023-3233

SSRF in Crmeb ≤ 4.6.0

Public PoCSSRF
Published
14 June 2023
Modified
21 November 2024
CVSS Score v3.1 6.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.0082 54th percentile
Risk Priority 50 floored blend · peak EPSS

Summary

CVE-2023-3233 is a medium-severity SSRF (CWE-918) vulnerability in Crmeb Crmeb. Its CVSS base score is 6.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 46% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

A vulnerability was found in Zhong Bang CRMEB up to 4.6.0. It has been classified as critical. Affected is the function get_image_base64 of the file api/controller/v1/PublicController.php. The manipulation leads to server-side request forgery. It is possible to launch the attack…

more

remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-231504. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-10391Same product: Crmeb Crmeb
CVE-2024-1703Same product: Crmeb Crmeb
CVE-2024-1704Same product: Crmeb Crmeb
CVE-2024-36837Same product: Crmeb Crmeb
CVE-2023-1165Same product: Crmeb Crmeb
CVE-2025-25763Same product: Crmeb Crmeb
CVE-2023-3234Same product: Crmeb Crmeb
CVE-2024-6943Same product: Crmeb Crmeb
CVE-2023-3232Same product: Crmeb Crmeb
CVE-2024-6944Same product: Crmeb Crmeb

Affected Assets

crmeb
crmeb
≤ 4.6.0

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)
  • V1.3.6
  • V1.5.3
  • V5.3.2
  • V10.4.7

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.

addresses: CWE-918

Penetration testing attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.

addresses: CWE-918

Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.

addresses: CWE-918

Validates server-side URLs and resource references to block SSRF attempts.

addresses: CWE-918

Detects server-side request forgery through monitoring of unexpected outbound connections.

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 development practices directly include input validation and destination allow-listing that prevent SSRF.

DE.CM-09 partial match
prevents

Runtime monitoring of web applications and services can detect anomalous outbound requests indicative of SSRF.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover and record SSRF flaws in web applications.

PR.IR-01 partial match
prevents

Network segmentation and egress controls can limit the damage from successful SSRF requests.

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.

prevents

Operational threat data describing SSRF campaigns can be used to tighten outbound-request allow-lists and detection rules before attackers exploit them.

References