Security readout for executives and security teams
Plain-English summary
CVE-2026-1280 affects the nmedia Frontend File Manager Plugin for WordPress. An unauthenticated attacker may cause uploaded files to be emailed out by referencing file IDs. Because IDs are sequential, restricted files could be discovered and exfiltrated. The main business risk is unauthorized disclosure of files stored through the plugin.
Executive priority
Treat as a high-priority confidentiality issue for affected WordPress sites. Prioritize sites handling customer data, employee records, contracts, financial documents, or administrator-only uploads. If such sites run version 23.5 or earlier, reduce exposure immediately while confirming vendor remediation guidance.
Technical view
The issue is missing authorization, CWE-862, on the wpfm_send_file_in_email AJAX action. Sources state versions up to and including 23.5 are affected. The flaw allows unauthenticated arbitrary uploaded-file sharing by supplying a file_id. CVSS is 7.5, driven by network access, low complexity, no privileges, no user interaction, and high confidentiality impact.
Likely exposure
Exposure is likely limited to WordPress sites running the nmedia Frontend File Manager Plugin at version 23.5 or earlier. Risk is higher where uploaded files include confidential, customer, internal, or administrator-only content. The provided source bundle does not identify other affected products.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. The vulnerability is remotely reachable and unauthenticated according to the CVE description. Sequential file IDs increase practical data-discovery risk, but no public exploit status is established by the provided sources.
Researcher notes
The bundle’s affected-version metadata appears inconsistent, but the description and references identify the plugin through 23.5. Evidence supports missing authorization and unauthenticated confidentiality impact. No patch version, exploit-in-the-wild claim, or KEV status is provided in the supplied sources.
Mitigation direction
- Identify all WordPress sites using the nmedia Frontend File Manager Plugin.
- Check vendor or WordPress plugin guidance for a fixed version or official mitigation.
- Disable or remove the plugin where sensitive uploads are present until remediated.
- Restrict access to uploaded files outside the plugin where feasible.
- Review and reduce sensitive content stored through the plugin.
Validation and detection
- Confirm installed plugin name and version across WordPress assets.
- Flag versions up to and including 23.5 for remediation review.
- Review plugin code for authorization checks on wpfm_send_file_in_email.
- Check mail logs for unexpected file-sharing messages from WordPress.
- Review uploaded-file repositories for sensitive data exposure impact.
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-862: 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 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-2026-1280 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e739e7d3-756a-4c93-9ca7-f7b9f9657033?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/nmedia-user-file-uploader/trunk/inc/callback-functions.php#L98CVE reference
- https://plugins.trac.wordpress.org/browser/nmedia-user-file-uploader/tags/23.5/inc/callback-functions.php#L98CVE reference
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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.