Security readout for executives and security teams
Plain-English summary
CVE-2026-1405 affects the Slider Future WordPress plugin through version 1.0.5. A missing upload file-type check can let unauthenticated internet users place arbitrary files on the server, which may enable full site compromise. Treat exposed WordPress sites using this plugin as urgent, especially public-facing marketing or commerce sites.
Executive priority
Prioritize within the next remediation cycle or sooner for internet-facing sites. The vulnerability requires no login and can affect confidentiality, integrity, and availability. If the plugin is not business-critical, removal is the lowest-risk immediate option while awaiting confirmed vendor remediation.
Technical view
The issue is an unauthenticated arbitrary file upload in Slider Future's slider_future_handle_image_upload function, mapped to CWE-434. The CVSS 3.1 score is 9.8, reflecting network access, low complexity, no privileges, and no user interaction. Sources state remote code execution may be possible, but do not provide a confirmed patch in the supplied data.
Likely exposure
Exposure is limited to WordPress installations with Slider Future installed, in versions up to and including 1.0.5. Publicly reachable WordPress sites are the highest concern because no authentication is required. The provided CPE data is incomplete, so asset inventory should rely on plugin name and version checks.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. However, unauthenticated arbitrary file upload on WordPress is a high-impact vulnerability class because successful abuse may allow attacker-controlled files on the server and potentially remote code execution.
Researcher notes
The supplied evidence identifies the vulnerable function and plugin version range, but does not include exploit confirmation, KEV status, or a named fixed release. Validate exposure through installed plugin metadata rather than CPE matching. Avoid assuming compromise; use logs and filesystem review to determine whether suspicious uploads occurred.
Mitigation direction
- Identify all WordPress sites using the Slider Future plugin.
- Disable or remove Slider Future where business impact allows.
- Check WordPress plugin and vendor guidance for a fixed version or official remediation.
- Prioritize public-facing sites and sites handling payments, credentials, or customer data.
- Review recent file changes and uploads on affected WordPress servers.
Validation and detection
- Confirm whether Slider Future is installed on each WordPress site.
- Record installed plugin versions and flag versions up to 1.0.5.
- Inspect web server and WordPress upload directories for unexpected files.
- Review access logs around plugin upload handling for suspicious unauthenticated activity.
- Monitor CVE, Wordfence, and WordPress plugin pages for remediation updates.
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-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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-1405 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.