CVE-2026-77929Patch

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

ClipBucket v5 before 5.5.3-#182 contains a file upload vulnerability that allows authenticated users to achieve remote code execution by uploading a PHP file with valid image magic bytes through the photo upload endpoint. The FileUpload::manageFile() function in fileupload.class.php fails to update the file extension after MIME validation, allowing an attacker-controlled .php extension to persist on disk and execute as PHP via PHP-FPM when the uploaded file is retrieved.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-434

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-18: 1Patch / Workaround · 2026-09-18: 1Technical Details · 2026-09-18: 109-18
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • CVE@CVEnew
    Patch

    CVE-2026-77929 ClipBucket v5 before 5.5.3-#182 contains a file upload vulnerability that allows authenticated users to achieve remote code execution by uploading a PHP file with val… https://www.cve.org/CVERecord?id=CVE-2026-77929

    Post summary

    The tweet discloses CVE-2026-77929 affecting ClipBucket v5 before version 5.5.3-#182, describing a file upload vulnerability enabling authenticated RCE via PHP file upload. The fixed version boundary (5.5.3-#182) is named, but no PoC, exploit tool, or active exploitation evidence is mentioned.

    00000831
    58.1K followersView on X

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