CVE-2020-18020: SQL Injection in PHPSHE Mall System v1.7 allows remote attackers to execute arbitrary code by injecting SQL co

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-18020 is a critical-severity flaw (CVSS 9.8) affecting mall system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection in PHPSHE Mall System v1.7 allows remote attackers to execute arbitrary code by injecting SQL commands into the "user_phone" parameter of a crafted HTTP request to the "admin.php" component.

Why this priority

Critical 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	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.8% (top 10%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-04-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: phpshe

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

Am I affected?

Timeline

2021-04-28 14:15 UTCPublished CVE record published
2026-06-17 02:59 UTCUpdated Record last modified

phpshe mall system DOWNGRADE

Affected: 1.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.7

1. Check installed version

apt-cache policy mall-system || rpm -q mall-system || mall-system --version

2. No fixed release: DOWNGRADE to a release before 1.7 (Debian / Ubuntu)

apt-cache madison mall-system sudo apt install mall-system=<VERSION_BEFORE_1.7> sudo apt-mark hold mall-system

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

dnf --showduplicates list mall-system sudo dnf downgrade mall-system-<VERSION_BEFORE_1.7> sudo dnf versionlock add mall-system

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-2020-18020?

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

Is CVE-2020-18020 being exploited?

CVE-2020-18020 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-2020-18020 affect?

CVE-2020-18020 affects mall system. Severity is critical (CVSS 9.8). SQL Injection in PHPSHE Mall System v1.7 allows remote attackers to execute arbitrary code by injecting SQL commands into the "user_phone" parameter of a crafted HTTP request to the "admin.php" component.

How urgent is CVE-2020-18020?

Priority 67/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2022-35154 CRITICAL 9.8 DOWNGRADE Shopro Mall System v1.3.8 was discovered to contain a SQL injection vulnerability via the value parameter.

References

← Back to latest CVEs