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TI-2026-10717 Aliases CVE-2026-12483GHSA-48gr-hj52-h85w

LearnDash LMS <= 5.1.5 - Authenticated (Subscriber+) Arbitrary File Upload via Assignment Upload Handler

Priority LOW 36CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

The LearnDash LMS plugin for WordPress is vulnerable to Unrestricted File Type Upload in versions up to and including 5.1.5. This is due to insufficient input validation in the 'learndash_fileupload_process' function, which iterates through an entire array and validates only the first file. This makes it possible for authenticated attackers, with subscriber-level access and above who are enrolled in a course with assignment uploads enabled, to upload arbitrary disallowed files, including PHP files, to the server's wp-content/uploads/learndash/assignments/ directory. The uploaded files can only be used for Remote Code Execution if default server configurations have been changed to allow for execution.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00648 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
stellarwpLearnDash LMSup to 5.1.5—No fix listedCNA
  • LearnDash LMS Vendorstellarwp Affected up to 5.1.5 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:learndash:learndash:*:*:*:*:*:*:*:*——LearnDash
  • cpe:2.3:a:learndash:learndash:*:*:*:*:*:*:*:* Versions — — ·LearnDash

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-12483
  2. 2026-10-03 Alias added: GHSA-48gr-hj52-h85w
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Other 2

  • TI-2024-05498 Deserialization of untrusted data in stellarwp GiveWP – Donation Plugin and Fundraising… CVSS 3.1CRITICAL 10.0
  • TI-2023-02655 BookIt <= 2.3.7 - Authentication Bypass CVSS 3.1CRITICAL 9.8
  • TI-2024-07671 The Events Calendar <= 6.6.4 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2024-03888 The Events Calendar < 6.4.0.1 - Reflected XSS CVSS 3.1CRITICAL 9.1
  • TI-2024-07745 GiveWP – Donation Plugin and Fundraising Platform <= 3.16.1 - Unauthenticated PHP Object Injection CVSS 3.1CRITICAL 9.8
  • TI-2024-04952 The Events Calendar < 6.8.2.1 - Unauthenticated Password Protected Event Disclosure CVSS 3.1MEDIUM 5.3
See all 142 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences