Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-82524

CVE-2026-82524HIGH

UnoPim File Upload RCE via TinyMCE Image Upload Endpoint

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   H   N   H   H   H    8.6   .0063   48.1     —

AFFECTED
  Product  Versions     Fixed
  unopim   unspecified  —

TIMELINE
  Aug 29  Reserved by VulnCheck
  Sep 2   Published (CNA: VulnCheck)
  Sep 3   EXPLOIT PUBLISHED — CVE-2026-82524 (unopim). Public exploit reference added.
  Sep 4   EXPLOIT PUBLISHED — CVE-2026-82524 (unopim). Public exploit reference added.
  Oct 1   EXPLOIT PUBLISHED — CVE-2026-82524 (unopim). Public exploit reference added.

CWE-434 · CNA: VulnCheck · CVSS v4.0 · 4 references · NVD status: Deferred

Description

UnoPim before 2.1.5 contains an authenticated file upload vulnerability that allows authenticated administrators to upload arbitrary PHP files through the TinyMCE image upload endpoint due to missing file extension and MIME type validation. Attackers can upload a PHP web shell to the public storage disk and execute arbitrary operating system commands on the server by accessing the uploaded file at the URL returned in the server response.

Lifecycle

Complete event history — 5 events, chronological
Date	Event	Detail
August 29, 2026	Reserved	Reserved by VulnCheck
September 2, 2026	Published	Published (CNA: VulnCheck)
September 3, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-82524 (unopim). Public exploit reference added.
September 4, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-82524 (unopim). Public exploit reference added.
October 1, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-82524 (unopim). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
unopim	unopim	—	—	—

Weaknesses

CWE-434

References (4)

https://ashutosh-jena.in/blog/remote-code-execution-rce-via-unrestricted-file-upload-in-unopim-v214 [technical-description, exploit]
https://github.com/unopim/unopim/commit/675dfb5155a87f94c5ac861545a31b8f6ea44f5b [patch]
https://github.com/unopim/unopim/releases/tag/v2.1.5 [release-notes]
https://www.vulncheck.com/advisories/unopim-file-upload-rce-via-tinymce-image-upload-endpoint [third-party-advisory]

Authoritative record: CVE-2026-82524 at cve.org

Vendors: unopim

Weaknesses: CWE-434

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-82524 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.