CVE-2018-1000640: OpenCart-Overclocked version <=1.11.1 contains a Cross Site Scripting (XSS) vulnerability in User input entere

Q: How do I fix CVE-2018-1000640?

opencart-overclocked: upgrade to newer than 1.11.1. Exact commands for each OS are on this page.

Q: Is CVE-2018-1000640 being exploited?

CVE-2018-1000640 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-2018-1000640 affect?

CVE-2018-1000640 affects opencart-overclocked. Severity is medium (CVSS 6.1). OpenCart-Overclocked version <=1.11.1 contains a Cross Site Scripting (XSS) vulnerability in User input entered unsanitised within JS function in the template that can result in Unauthorised actions and access to data, stealing session info

Q: How urgent is CVE-2018-1000640?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2018-1000640 is a medium-severity flaw (CVSS 6.1) affecting opencart-overclocked. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenCart-Overclocked version <=1.11.1 contains a Cross Site Scripting (XSS) vulnerability in User input entered unsanitised within JS function in the template that can result in Unauthorised actions and access to data, stealing session information, denial of service. This attack appear to be exploitable via Malicious input passed in GET parameter.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-08-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: villagedefrance

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

Am I affected?

Timeline

2018-08-20 19:31 UTCPublished CVE record published
2026-06-17 01:33 UTCUpdated Record last modified

villagedefrance opencart-overclocked UPGRADE

Affected: <= 1.11.1

Fixed in: newer than 1.11.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy opencart-overclocked || rpm -q opencart-overclocked || opencart-overclocked --version

2. UPGRADE to newer than 1.11.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade opencart-overclocked

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opencart-overclocked

Note

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

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-2018-1000640?

opencart-overclocked: upgrade to newer than 1.11.1. Exact commands for each OS are on this page.

Is CVE-2018-1000640 being exploited?

CVE-2018-1000640 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-2018-1000640 affect?

CVE-2018-1000640 affects opencart-overclocked. Severity is medium (CVSS 6.1). OpenCart-Overclocked version <=1.11.1 contains a Cross Site Scripting (XSS) vulnerability in User input entered unsanitised within JS function in the template that can result in Unauthorised actions and access to data, stealing session info

How urgent is CVE-2018-1000640?

Priority 36/100. No elevated risk signals yet.

Software pages

OpenCart vulnerabilities

References

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