CVE-2017-15956: ConverTo Video Downloader & Converter 1.4.1 allows Arbitrary File Download via the token parameter to download

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2017-15956 is a high-severity flaw (CVSS 7.5) affecting converto video downloader \& converter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
EPSS top 8%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	4.7% (top 8%)
CISA exploited list	No
Weakness	CWE-20
Published	2017-10-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: converto video downloader \& converter project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-10-29 06:29 UTCPublished CVE record published
2026-06-17 01:08 UTCUpdated Record last modified

converto video downloader \& converter project converto video downloader \& converter DOWNGRADE

Affected: 1.4.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.1

1. Check installed version

apt-cache policy converto-video-downloader--converter || rpm -q converto-video-downloader--converter || converto-video-downloader--converter --version

2. No fixed release: DOWNGRADE to a release before 1.4.1 (Debian / Ubuntu)

apt-cache madison converto-video-downloader--converter sudo apt install converto-video-downloader--converter=<VERSION_BEFORE_1.4.1> sudo apt-mark hold converto-video-downloader--converter

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list converto-video-downloader--converter sudo dnf downgrade converto-video-downloader--converter-<VERSION_BEFORE_1.4.1> sudo dnf versionlock add converto-video-downloader--converter

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: ConverTo Video Downloader & Converter 1.4.1 - Arbitrary File Download

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-15956?

converto video downloader \& converter: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-15956 being exploited?

CVE-2017-15956 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-15956 affect?

CVE-2017-15956 affects converto video downloader \& converter. Severity is high (CVSS 7.5). ConverTo Video Downloader & Converter 1.4.1 allows Arbitrary File Download via the token parameter to download.php.

How urgent is CVE-2017-15956?

Priority 59/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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