CVE-2023-24734
Published: 06 March 2023
Summary
CVE-2023-24734 is a critical-severity Use After Free (CWE-416) vulnerability in Sigb Pmb. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 12.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
An arbitrary file upload vulnerability exists in the camera_upload.php component of PMB version 7.4.6. The flaw permits attackers to upload a crafted image file that results in arbitrary code execution on the server. It carries a CVSS 3.1 base score of 9.8 reflecting network-accessible, unauthenticated exploitation with high impact on confidentiality, integrity, and availability. The associated weakness is listed as CWE-416.
Unauthenticated remote attackers can exploit the issue by sending a malicious image file directly to the affected upload endpoint. Successful exploitation grants the ability to execute arbitrary code, potentially leading to full system compromise without any user interaction or credentials.
Public references consist of GitHub repositories containing exploit details for the vulnerability. No official advisories or patch information are provided in the listed sources.
The EPSS score rose from a low baseline to a peak of 0.1193 on 2026-03-08 before receding to the current value of 0.0318, indicating that exploitation interest increased after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-28744
Vulnerability details
An arbitrary file upload vulnerability in the camera_upload.php component of PMB v7.4.6 allows attackers to execute arbitrary code via a crafted image file.
- 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.
Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.