CVE-2016-4903: Cross-site scripting vulnerability in WP-OliveCart versions prior to 3.1.3 and WP-OliveCartPro versions prior

Q: How do I fix CVE-2016-4903?

olivecart: upgrade to newer than 3.1.2; olivecartpro: upgrade to newer than 3.1.7. Exact commands for each OS are on this page.

Q: Is CVE-2016-4903 being exploited?

CVE-2016-4903 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-2016-4903 affect?

CVE-2016-4903 affects olivecart, olivecartpro. Severity is medium (CVSS 6.1). Cross-site scripting vulnerability in WP-OliveCart versions prior to 3.1.3 and WP-OliveCartPro versions prior to 3.1.8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Q: How urgent is CVE-2016-4903?

Priority 38/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADEUPGRADE

CVE-2016-4903 is a medium-severity flaw (CVSS 6.1) affecting olivecart, olivecartpro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting vulnerability in WP-OliveCart versions prior to 3.1.3 and WP-OliveCartPro versions prior to 3.1.8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

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	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-05-22
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: wp-olivecart

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

Am I affected?

Timeline

2017-05-22 16:29 UTCPublished CVE record published
2026-06-17 00:48 UTCUpdated Record last modified

wp-olivecart olivecart UPGRADE

Affected: <= 3.1.2

Fixed in: newer than 3.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade olivecart

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade olivecart

Note

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

wp-olivecart olivecartpro UPGRADE

Affected: <= 3.1.7

Fixed in: newer than 3.1.7

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.1.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade olivecartpro

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade olivecartpro

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-2016-4903?

olivecart: upgrade to newer than 3.1.2; olivecartpro: upgrade to newer than 3.1.7. Exact commands for each OS are on this page.

Is CVE-2016-4903 being exploited?

CVE-2016-4903 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-2016-4903 affect?

CVE-2016-4903 affects olivecart, olivecartpro. Severity is medium (CVSS 6.1). Cross-site scripting vulnerability in WP-OliveCart versions prior to 3.1.3 and WP-OliveCartPro versions prior to 3.1.8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

How urgent is CVE-2016-4903?

Priority 38/100. No elevated risk signals yet.

Related CVEs

CVE-2016-4905 CRITICAL 9.8 UPGRADE UPGRADE SQL injection vulnerability in the WP-OliveCart versions prior to 3.1.3 and WP-OliveCartPro versions prior to
CVE-2016-4904 HIGH 8.8 UPGRADE UPGRADE Cross-site request forgery (CSRF) vulnerability in WP-OliveCart versions prior to 3.1.3 and WP-OliveCartPro ve

References

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