CVE-2020-23715: Directory Traversal vulnerability in Webport CMS 1.19.10.17121 via the file parameter to file/download.

This week

HIGH 8.6REMOTEDOWNGRADE

CVE-2020-23715 is a high-severity flaw (CVSS 8.6) affecting webport cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory Traversal vulnerability in Webport CMS 1.19.10.17121 via the file parameter to file/download.

Why this priority

High 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	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Weakness	CWE-22
Published	2021-06-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: webport cms project

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

Am I affected?

Timeline

2021-06-28 17:15 UTCPublished CVE record published
2026-06-17 03:04 UTCUpdated Record last modified

webport cms project webport cms DOWNGRADE

Affected: 1.19.10.17121

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.19.10.17121

1. Check installed version

apt-cache policy webport-cms || rpm -q webport-cms || webport-cms --version

2. No fixed release: DOWNGRADE to a release before 1.19.10.17121 (Debian / Ubuntu)

apt-cache madison webport-cms sudo apt install webport-cms=<VERSION_BEFORE_1.19.10.17121> sudo apt-mark hold webport-cms

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

dnf --showduplicates list webport-cms sudo dnf downgrade webport-cms-<VERSION_BEFORE_1.19.10.17121> sudo dnf versionlock add webport-cms

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-2020-23715?

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

Is CVE-2020-23715 being exploited?

CVE-2020-23715 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-2020-23715 affect?

CVE-2020-23715 affects webport cms. Severity is high (CVSS 8.6). Directory Traversal vulnerability in Webport CMS 1.19.10.17121 via the file parameter to file/download.

How urgent is CVE-2020-23715?

Priority 60/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

← Back to latest CVEs