Security readout for executives and security teams
Plain-English summary
CVE-2026-0566 affects code-projects Content Management System 1.0. An authenticated remote user may upload unrestricted files through the admin post-editing function. Public exploit information exists, but the provided sources do not show confirmed active exploitation. Treat exposure seriously if this CMS is internet-facing or used for sensitive content.
Executive priority
Prioritize if the CMS is internet-facing, supports multiple administrators, or stores sensitive business content. Because public exploit details exist and no confirmed fix is provided in the sources, reduce exposure quickly while checking vendor guidance.
Technical view
The issue is reported in /admin/edit_posts.php, where manipulation of the image argument leads to unrestricted file upload. VulDB maps it to CWE-434 and CWE-284. CVSS v2 is 5.8 with network access, low complexity, and authentication required. Exploit proof-of-concept availability is indicated by the CVSS exploitability field and references.
Likely exposure
Likely limited to deployments of code-projects Content Management System version 1.0, especially where authenticated admin functionality is reachable over the network. The CVSS vector indicates authentication is required, reducing opportunistic exposure but not insider, credential-stuffing, or compromised-account risk.
Exploitation context
The source bundle says the exploit has been publicly disclosed and may be used. It is not listed as CISA KEV, and no provided source confirms active exploitation. Successful abuse could affect confidentiality, integrity, and availability according to the CVSS impact values.
Researcher notes
Evidence comes primarily from VulDB, CVE records, and a GitHub issue reference. The affected function is described as unknown within /admin/edit_posts.php. Sources do not provide a confirmed patch, detailed vendor advisory, or active exploitation evidence. Avoid assuming affected versions beyond 1.0.
Mitigation direction
- Inventory for code-projects Content Management System 1.0 deployments.
- Check code-projects and referenced advisories for vendor guidance or updates.
- Restrict access to /admin interfaces to trusted users and networks.
- Review upload handling controls and permitted file types.
- Monitor web directories for unexpected uploaded files.
Validation and detection
- Confirm whether version 1.0 is deployed.
- Identify whether /admin/edit_posts.php is reachable remotely.
- Review admin accounts for unnecessary or shared access.
- Check logs for unusual post-editing or upload activity.
- Inspect upload directories for unexpected executable content.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-0566 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.8 (2.0)
- Known Exploited
- No
- Published
Vector: AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR6.46.4Primary CVE scoreVulnerability scoring details
Base CVSS 2.0 score
5.8MediumVector: AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Source materials
- CVE List V5 sourceCVE List V5
- VDB-339378 | code-projects Content Management System edit_posts.php unrestricted uploadCVE reference · vdb-entry, technical-description
- VDB-339378 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference · signature, permissions-required
- Submit #729228 | Code-projects Content Management System v1.0 Arbitrary file upload vulnerabilityCVE reference · third-party-advisory
- https://github.com/Limingqian123/CVE/issues/13CVE reference · exploit, issue-tracking
- https://code-projects.org/CVE reference · product
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.