CVE-2026-0643
Published: 07 January 2026
Summary
CVE-2026-0643 is a high-severity Improper Access Control (CWE-284) vulnerability in Projectworlds House Rental And Property Listing Project. Its CVSS base score is 7.3 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 23.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
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.
This control enforces ownership-based restrictions on portable storage device use, directly implementing access control over media insertion into organizational systems.
Hardware write-protect enforces access control on critical resources (e.g., firmware) independent of software state.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unrestricted file upload in public-facing web app directly enables exploitation of the application (T1190) to deploy a web shell (T1100/T1505.003) for execution and persistence.
NVD Description
A flaw has been found in projectworlds House Rental and Property Listing 1.0. Impacted is an unknown function of the file /app/register.php?action=reg of the component Signup. This manipulation of the argument image causes unrestricted upload. Remote exploitation of the attack…
more
is possible. The exploit has been published and may be used.
Deeper analysisAI
CVE-2026-0643 is an unrestricted file upload vulnerability in projectworlds House Rental and Property Listing version 1.0. The flaw affects an unknown function within the Signup component, specifically in the file /app/register.php?action=reg, where manipulation of the "image" argument enables the upload of arbitrary files. Published on 2026-01-07, it is associated with CWEs-284 (Improper Access Control) and CWE-434 (Unrestricted Upload of File with Dangerous Type), and carries a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
Remote attackers require no privileges or user interaction to exploit this vulnerability over the network with low complexity. Successful exploitation allows limited impacts on confidentiality, integrity, and availability, such as uploading malicious files that could lead to further compromise depending on server configuration and file handling.
Advisories and additional details, including a published exploit, are documented in references such as https://vuldb.com/?ctiid.339686, https://vuldb.com/?id.339686, https://vuldb.com/?submit.732563, and https://github.com/1uzpk/cve/issues/4. The availability of a public exploit indicates potential for immediate misuse by threat actors.
Details
- CWE(s)