CVE-2020-23037: Portable Ltd Playable v9.18 contains a code injection vulnerability in the filename parameter, which allows at

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CRITICAL 9.8REMOTEDOWNGRADEDOWNGRADE

CVE-2020-23037 is a critical-severity flaw (CVSS 9.8) affecting playable, playable. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Portable Ltd Playable v9.18 contains a code injection vulnerability in the filename parameter, which allows attackers to execute arbitrary web scripts or HTML via a crafted POST request.

Why this priority

Critical severity
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	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-94
Published	2021-10-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: portable

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

Am I affected?

Timeline

2021-10-22 20:15 UTCPublished CVE record published
2026-06-17 03:04 UTCUpdated Record last modified

portable playable DOWNGRADE

Affected: 9.18

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.18

1. Check installed version

apt-cache policy playable || rpm -q playable || playable --version

2. No fixed release: DOWNGRADE to a release before 9.18 (Debian / Ubuntu)

apt-cache madison playable sudo apt install playable=<VERSION_BEFORE_9.18> sudo apt-mark hold playable

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

dnf --showduplicates list playable sudo dnf downgrade playable-<VERSION_BEFORE_9.18> sudo dnf versionlock add playable

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.

portable playable DOWNGRADE

Affected: 9.18

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.18

1. Check installed version

apt-cache policy playable || rpm -q playable || playable --version

2. No fixed release: DOWNGRADE to a release before 9.18 (Debian / Ubuntu)

apt-cache madison playable sudo apt install playable=<VERSION_BEFORE_9.18> sudo apt-mark hold playable

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

dnf --showduplicates list playable sudo dnf downgrade playable-<VERSION_BEFORE_9.18> sudo dnf versionlock add playable

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.

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-2020-23037?

playable: downgrade or apply the listed mitigation; playable: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-23037 being exploited?

CVE-2020-23037 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-2020-23037 affect?

CVE-2020-23037 affects playable, playable. Severity is critical (CVSS 9.8). Portable Ltd Playable v9.18 contains a code injection vulnerability in the filename parameter, which allows attackers to execute arbitrary web scripts or HTML via a crafted POST request.

How urgent is CVE-2020-23037?

Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-36485 HIGH 7.8 DOWNGRADE Portable Ltd Playable v9.18 was discovered to contain an arbitrary file upload vulnerability in the filename p

References

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