CVE-2019-16330: In NCH Express Accounts Accounting v7.02, persistent cross site scripting (XSS) exists in Invoices/Sales Order

Routine

MEDIUM 5.4DOWNGRADE

CVE-2019-16330 is a medium-severity flaw (CVSS 5.4) affecting express accounts accounting. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In NCH Express Accounts Accounting v7.02, persistent cross site scripting (XSS) exists in Invoices/Sales Orders/Items/Customers/Quotes input field. An authenticated unprivileged user can add/modify the Invoices/Sales Orders/Items/Customers/Quotes fields parameter to inject arbitrary JavaScript.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-10-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: nchsoftware

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

Am I affected?

Timeline

2019-10-17 17:15 UTCPublished CVE record published
2026-06-17 02:22 UTCUpdated Record last modified

nchsoftware express accounts accounting DOWNGRADE

Affected: 7.02

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.02

1. Check installed version

apt-cache policy express-accounts-accounting || rpm -q express-accounts-accounting || express-accounts-accounting --version

2. No fixed release: DOWNGRADE to a release before 7.02 (Debian / Ubuntu)

apt-cache madison express-accounts-accounting sudo apt install express-accounts-accounting=<VERSION_BEFORE_7.02> sudo apt-mark hold express-accounts-accounting

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

dnf --showduplicates list express-accounts-accounting sudo dnf downgrade express-accounts-accounting-<VERSION_BEFORE_7.02> sudo dnf versionlock add express-accounts-accounting

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-2019-16330?

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

Is CVE-2019-16330 being exploited?

CVE-2019-16330 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-2019-16330 affect?

CVE-2019-16330 affects express accounts accounting. Severity is medium (CVSS 5.4). In NCH Express Accounts Accounting v7.02, persistent cross site scripting (XSS) exists in Invoices/Sales Orders/Items/Customers/Quotes input field. An authenticated unprivileged user can add/modify the Invoices/Sales Orders/Items/Customers/

How urgent is CVE-2019-16330?

Priority 36/100. Public exploit reference

References

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