CVE-2020-35754: OpenSolution Quick.CMS < 6.7 and Quick.Cart < 6.7 allow an authenticated user to perform code injection (and c

Q: How do I fix CVE-2020-35754?

quick.cart: upgrade to 6.7; quick.cms: upgrade to 6.7. Exact commands for each OS are on this page.

Q: Is CVE-2020-35754 being exploited?

CVE-2020-35754 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-2020-35754 affect?

CVE-2020-35754 affects quick.cart, quick.cms. Severity is high (CVSS 7.2). OpenSolution Quick.CMS < 6.7 and Quick.Cart < 6.7 allow an authenticated user to perform code injection (and consequently Remote Code Execution) via the input fields of the Language tab.

Q: How urgent is CVE-2020-35754?

Priority 54/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

This week

HIGH 7.2UPGRADEUPGRADE

CVE-2020-35754 is a high-severity flaw (CVSS 7.2) affecting quick.cart, quick.cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenSolution Quick.CMS < 6.7 and Quick.Cart < 6.7 allow an authenticated user to perform code injection (and consequently Remote Code Execution) via the input fields of the Language tab.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	10.9% (top 4%)
CISA exploited list	No
Weakness	CWE-94
Published	2021-01-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: opensolution

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

Am I affected?

Timeline

2021-01-28 20:15 UTCPublished CVE record published
2026-06-17 03:14 UTCUpdated Record last modified

opensolution quick.cart UPGRADE

Affected: < 6.7

Fixed in: 6.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy quick.cart || rpm -q quick.cart || quick.cart --version

2. UPGRADE to 6.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade quick.cart

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade quick.cart

Note

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

opensolution quick.cms UPGRADE

Affected: < 6.7

Fixed in: 6.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy quick.cms || rpm -q quick.cms || quick.cms --version

2. UPGRADE to 6.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade quick.cms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade quick.cms

Note

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

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: Quick.CMS 6.7 - Remote Code Execution (Authenticated)

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-2020-35754?

quick.cart: upgrade to 6.7; quick.cms: upgrade to 6.7. Exact commands for each OS are on this page.

Is CVE-2020-35754 being exploited?

CVE-2020-35754 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-2020-35754 affect?

CVE-2020-35754 affects quick.cart, quick.cms. Severity is high (CVSS 7.2). OpenSolution Quick.CMS < 6.7 and Quick.Cart < 6.7 allow an authenticated user to perform code injection (and consequently Remote Code Execution) via the input fields of the Language tab.

How urgent is CVE-2020-35754?

Priority 54/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

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References

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