Cyber Resilience

CVE-2023-27179

Gdidees Cms ≤ 3.9.1

Public PoCHigh EPSS
Published
11 April 2023
Modified
11 February 2025
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.61 99.1th percentile
Risk Priority 83 floored blend · peak EPSS

Summary

CVE-2023-27179 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Gdidees Gdidees Cms. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 0.9% 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.

GDidees CMS versions 3.9.1 and earlier contain an arbitrary file download vulnerability in the filename parameter of the /_admin/imgdownload.php endpoint. The flaw is tracked as CVE-2023-27179 with a CVSS 3.1 base score of 7.5 and is associated with CWE-434, allowing unauthenticated remote actors to retrieve files from the server filesystem.

An attacker can supply crafted filename values to the affected script and obtain the contents of arbitrary files, resulting in disclosure of sensitive configuration data, source code, or other restricted information without requiring authentication or user interaction.

Public references include proof-of-concept exploits published on Packet Storm and a technical gist demonstrating the traversal technique, along with general guidance on unrestricted file download weaknesses; no vendor advisory or patch information is referenced in the available sources. The EPSS score has remained at its recorded peak of 0.8690 since disclosure, indicating sustained exploitation interest.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

GDidees CMS v3.9.1 and lower was discovered to contain an arbitrary file download vulenrability via the filename parameter at /_admin/imgdownload.php.

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.
T1505 Server Software Component Persistence
Adversaries may abuse legitimate extensible development features of servers to establish persistent access to systems.
T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
T1105 Ingress Tool Transfer Command And Control
Adversaries may transfer tools or other files from an external system into a compromised environment.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-46101Same product: Gdidees Gdidees Cms
CVE-2023-27178Same product: Gdidees Gdidees Cms
CVE-2023-44758Same product: Gdidees Gdidees Cms
CVE-2023-27180Same product: Gdidees Gdidees Cms
CVE-2023-31946Shared CWE-434
CVE-2023-25922Shared CWE-434
CVE-2024-49216Shared CWE-434
CVE-2025-8297Shared CWE-434
CVE-2024-35080Shared CWE-434
CVE-2021-30118Shared CWE-434

Affected Assets

gdidees
gdidees cms
≤ 3.9.1

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)
  • V5.1.1

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-434

Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.

addresses: CWE-434

Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.

addresses: CWE-434

Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.

addresses: CWE-434

Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.

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-05 mostly match
prevents

Restricting execution of unauthorized software directly blocks dangerous uploaded files from running.

PR.PS-01 partial match
prevents

Hardened configuration baselines can enforce allowed file types and processing rules.

PR.PS-06 partial match
prevents

Secure development practices include input validation and file-type restrictions that prevent this weakness.

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.

finds

Configuration and acceptance testing verify that file-upload handling enforces allowed types and does not permit dangerous content to be stored or executed.

prevents

Secure-coding guidelines and security testing explicitly address restrictions on allowed file types and upload handling, reducing the risk that dangerous file uploads are accepted without validation.

prevents

Mandated testing for malicious content and known vulnerabilities reduces the likelihood that an outsourced component will contain or accept dangerous file types that could later be uploaded or executed.

mitigates

Application allow-listing and pre-use scanning of received files directly blocks the introduction of executable content that has not been vetted, eliminating the primary vector for unrestricted dangerous file uploads.

References