CVE-2019-20484: An issue was discovered in Viki Vera 4.9.1.26180

This month

HIGH 8.1DOWNGRADE

CVE-2019-20484 is a high-severity flaw (CVSS 8.1) affecting vera. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Viki Vera 4.9.1.26180. A user without access to a project could download or upload project files by opening the Project URL directly in the browser after logging in.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-425
Published	2021-01-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: vikisolutions

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

Am I affected?

Timeline

2021-01-05 22:15 UTCPublished CVE record published
2026-06-17 02:30 UTCUpdated Record last modified

vikisolutions vera DOWNGRADE

Affected: 4.9.1.26180

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.9.1.26180

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.9.1.26180 (Debian / Ubuntu)

apt-cache madison vera sudo apt install vera=<VERSION_BEFORE_4.9.1.26180> sudo apt-mark hold vera

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

dnf --showduplicates list vera sudo dnf downgrade vera-<VERSION_BEFORE_4.9.1.26180> sudo dnf versionlock add vera

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-2019-20484?

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

Is CVE-2019-20484 being exploited?

CVE-2019-20484 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-2019-20484 affect?

CVE-2019-20484 affects vera. Severity is high (CVSS 8.1). An issue was discovered in Viki Vera 4.9.1.26180. A user without access to a project could download or upload project files by opening the Project URL directly in the browser after logging in.

How urgent is CVE-2019-20484?

Priority 48/100. High severity; Public exploit reference

Related CVEs

CVE-2019-20483 MEDIUM 5.4 DOWNGRADE An issue was discovered in Viki Vera 4.9.1.26180
CVE-2019-15123 HIGH 7.2 DOWNGRADE The Branding Module in Viki Vera 4.9.1.26180 allows an authenticated user to change the logo on the website

References

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