CVE-2020-35754Public exploitNetwork attack vector

Authenticated remote code execution via language value injection

Published Jan 28, 2021 · Updated Aug 4, 2024

Code injection in OpenSolution Quick.CMS and Quick.Cart before 6.7 allows remote authenticated users to execute arbitrary server code. The Language editor saves the Back_end_only field as executable language data without neutralizing PHP syntax, so a crafted value closes the quoted string and inserts a system call. Administrative credentials are required; loading the Language page then runs the injected command with the web server process privileges.

CVSS severity7.2
High
EPSS probability10.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in OpenSolution Quick.CMS and Quick.Cart before 6.7 allows remote authenticated users to execute arbitrary server code. The Language editor saves the Back_end_only field as executable language data without neutralizing PHP syntax, so a crafted value closes the quoted string and inserts a system call. Administrative credentials are required; loading the Language page then runs the injected command with the web server process privileges.

The record

CVE
CVE-2020-35754
Published
Jan 28, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 28, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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