CVE-2023-36298
Published: 03 August 2023
Summary
CVE-2023-36298 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Dedecms Dedecms. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 7.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
DedeCMS version 5.7.109 contains a file upload vulnerability tracked as CWE-434 that leads to remote code execution. The flaw received a CVSS 3.1 base score of 8.8 under the vector string AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, indicating a remotely exploitable issue that requires only low privileges and no user interaction.
An authenticated attacker with low privileges can send a crafted upload request over the network to place executable content on the server and subsequently execute arbitrary code, resulting in full compromise of confidentiality, integrity, and availability.
Public repositories on GitHub contain proof-of-concept code that reproduces the upload path to RCE. The EPSS score remains flat at 0.0905 with no material rise from its recorded peak.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-40268
Vulnerability details
DedeCMS v5.7.109 has a File Upload vulnerability, leading to remote code execution (RCE).
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
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.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.