CVE-2018-20849: Arastta eCommerce 1.6.2 is vulnerable to XSS via the PATH_INFO to the login/ URI.

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MEDIUM 6.1DOWNGRADE

CVE-2018-20849 is a medium-severity flaw (CVSS 6.1) affecting ecommerce. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Arastta eCommerce 1.6.2 is vulnerable to XSS via the PATH_INFO to the login/ URI.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-06-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: arastta

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

Am I affected?

Timeline

2019-06-30 19:15 UTCPublished CVE record published
2026-06-17 01:53 UTCUpdated Record last modified

arastta ecommerce DOWNGRADE

Affected: 1.6.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.6.2 (Debian / Ubuntu)

apt-cache madison ecommerce sudo apt install ecommerce=<VERSION_BEFORE_1.6.2> sudo apt-mark hold ecommerce

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

dnf --showduplicates list ecommerce sudo dnf downgrade ecommerce-<VERSION_BEFORE_1.6.2> sudo dnf versionlock add ecommerce

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-2018-20849?

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

Is CVE-2018-20849 being exploited?

CVE-2018-20849 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-2018-20849 affect?

CVE-2018-20849 affects ecommerce. Severity is medium (CVSS 6.1). Arastta eCommerce 1.6.2 is vulnerable to XSS via the PATH_INFO to the login/ URI.

How urgent is CVE-2018-20849?

Priority 42/100. Public exploit reference

Related CVEs

CVE-2023-3857 LOW 3.5 DOWNGRADE A vulnerability, which was classified as problematic, was found in phpscriptpoint Ecommerce 1.15
CVE-2023-3856 LOW 3.5 DOWNGRADE A vulnerability, which was classified as problematic, has been found in phpscriptpoint Ecommerce 1.15
CVE-2018-15202 MEDIUM 6.3 DOWNGRADE An issue was discovered in Juunan06 eCommerce through 2018-08-05

References

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