VulnSocial

CVE-2025-56399Disclosure

LOWCVSS 8.8 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

alexusmai laravel-file-manager 3.3.1 and before allows an authenticated attacker to achieve Remote Code Execution (RCE) through a crafted file upload. A file with a '.png` extension containing PHP code can be uploaded via the file manager interface. Although the upload appears to fail client-side validation, the file is still saved on the server. The attacker can then use the rename API to change the file extension to `.php`, and upon accessing it via a public URL, the server executes the embedded code.

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1.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-94

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-06-28); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-28: 1Mentions · 2026-06-29: 1PoC Mentioned / Linked · 2026-06-29: 1Technical Details · 2026-06-28: 1Technical Details · 2026-06-29: 106-2806-29
Signal classification2 categories
Disclosure
150.0%
PoC
150.0%
Referenced assets1 URL
Classification over time
DateTotalLabels
2026-06-281
Disclosure1
2026-06-291
PoC1
Full discourse2 posts
  • YogSotho@YogSoth0
    Disclosure

    #CVE-2025-56399 — #Laravel File Manager Unrestricted Upload Authenticated #RCE via File Upload + Rename This is a **two-step attack**: 1. Upload payload disguised as image → saved server-side 2. Rename extension to `.php` → RCE on access #security #0days #exploit #hacking https://t.co/0BVi2JK5hv

    Post summary

    The tweet announces a newly discovered Laravel File Manager vulnerability that permits authenticated remote code execution via unrestricted file upload and renaming of the payload to a PHP script.

    2291154888.2K
    1.9K followersView on X
  • UNDERCODE TESTING@UndercodeUpdate
    PoC

    🚨 #CVE-2025-56399 — Laravel File Manager Unrestricted Upload: Authenticated RCE via Two-Step File Upload + Rename Attack + Video https://undercodetesting.com/cve-2025-56399-laravel-file-manager-unrestricted-upload-authenticated-rce-via-two-step-file-upload-rename-attack-video/ Educational Purposes!

    Post summary

    A video PoC demonstrates an authenticated remote code execution vulnerability in Laravel File Manager via a two‑step upload and rename attack, but there is no publicly available exploit code, patch, or evidence of active exploitation.

    0000076
    643 followersView on X

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