CVE-2020-13694: In QuickBox Community Edition through 2.5.5 and Pro Edition through 2.1.8, the local www-data user can execute

Q: How do I fix CVE-2020-13694?

quickbox: upgrade to newer than 2.5.5. Exact commands for each OS are on this page.

Q: Is CVE-2020-13694 being exploited?

CVE-2020-13694 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-13694 affect?

CVE-2020-13694 affects quickbox. Severity is high (CVSS 8.8). In QuickBox Community Edition through 2.5.5 and Pro Edition through 2.1.8, the local www-data user can execute sudo mysql without a password, which means that the www-data user can execute arbitrary OS commands via the mysql -e option.

Q: How urgent is CVE-2020-13694?

Priority 56/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2020-13694 is a high-severity flaw (CVSS 8.8) affecting quickbox. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In QuickBox Community Edition through 2.5.5 and Pro Edition through 2.1.8, the local www-data user can execute sudo mysql without a password, which means that the www-data user can execute arbitrary OS commands via the mysql -e option.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-78
Published	2020-06-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: quickbox

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

Am I affected?

Timeline

2020-06-01 16:15 UTCPublished CVE record published
2026-06-17 02:53 UTCUpdated Record last modified

quickbox quickbox UPGRADE

Affected: <= 2.5.5 · <= 2.1.8

Fixed in: newer than 2.5.5

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.5.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade quickbox

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade quickbox

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2020-13694?

quickbox: upgrade to newer than 2.5.5. Exact commands for each OS are on this page.

Is CVE-2020-13694 being exploited?

CVE-2020-13694 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-2020-13694 affect?

CVE-2020-13694 affects quickbox. Severity is high (CVSS 8.8). In QuickBox Community Edition through 2.5.5 and Pro Edition through 2.1.8, the local www-data user can execute sudo mysql without a password, which means that the www-data user can execute arbitrary OS commands via the mysql -e option.

How urgent is CVE-2020-13694?

Priority 56/100. High severity; Public exploit reference

Software pages

MySQL vulnerabilities · Sudo vulnerabilities

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References

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