CVE-2018-20646: PHP Scripts Mall Basic B2B Script 2.0.9 has has directory traversal via a direct request for a listing of an i

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MEDIUM 6.5DOWNGRADE

CVE-2018-20646 is a medium-severity flaw (CVSS 6.5) affecting basic b2b script. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP Scripts Mall Basic B2B Script 2.0.9 has has directory traversal via a direct request for a listing of an image directory such as an uploads/ directory.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-22
Published	2019-03-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: basic b2b script project

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

Am I affected?

Timeline

2019-03-21 16:00 UTCPublished CVE record published
2026-06-17 01:53 UTCUpdated Record last modified

basic b2b script project basic b2b script DOWNGRADE

Affected: 2.0.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.9

1. Check installed version

apt-cache policy basic-b2b-script || rpm -q basic-b2b-script || basic-b2b-script --version

2. No fixed release: DOWNGRADE to a release before 2.0.9 (Debian / Ubuntu)

apt-cache madison basic-b2b-script sudo apt install basic-b2b-script=<VERSION_BEFORE_2.0.9> sudo apt-mark hold basic-b2b-script

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

dnf --showduplicates list basic-b2b-script sudo dnf downgrade basic-b2b-script-<VERSION_BEFORE_2.0.9> sudo dnf versionlock add basic-b2b-script

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-2018-20646?

basic b2b script: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-20646 being exploited?

CVE-2018-20646 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-2018-20646 affect?

CVE-2018-20646 affects basic b2b script. Severity is medium (CVSS 6.5). PHP Scripts Mall Basic B2B Script 2.0.9 has has directory traversal via a direct request for a listing of an image directory such as an uploads/ directory.

How urgent is CVE-2018-20646?

Priority 47/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2018-20645 MEDIUM 5.4 DOWNGRADE PHP Scripts Mall Basic B2B Script 2.0.9 has HTML injection via the First Name or Last Name field.
CVE-2018-20644 HIGH 8.8 DOWNGRADE PHP Scripts Mall Basic B2B Script 2.0.9 has Cross-Site Request Forgery (CSRF) via the Edit profile feature.
CVE-2017-17600 CRITICAL 9.8 DOWNGRADE Basic B2B Script 2.0.8 has SQL Injection via the product_details.php id parameter.
CVE-2017-15985 CRITICAL 9.8 MITIGATE Basic B2B Script allows SQL Injection via the product_view1.php pid or id parameter.

References

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