CVE-2021-28110: /exec in TranzWare e-Commerce Payment Gateway (TWEC PG) before 3.1.27.5 had a vulnerability in its XML parser.

Q: How do I fix CVE-2021-28110?

tranzware e-commerce payment gateway: upgrade to 3.1.27.5. Exact commands for each OS are on this page.

Q: Is CVE-2021-28110 being exploited?

CVE-2021-28110 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-2021-28110 affect?

CVE-2021-28110 affects tranzware e-commerce payment gateway. Severity is high (CVSS 7.5). /exec in TranzWare e-Commerce Payment Gateway (TWEC PG) before 3.1.27.5 had a vulnerability in its XML parser.

Q: How urgent is CVE-2021-28110?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2021-28110 is a high-severity flaw (CVSS 7.5) affecting tranzware e-commerce payment gateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

/exec in TranzWare e-Commerce Payment Gateway (TWEC PG) before 3.1.27.5 had a vulnerability in its XML parser.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-611
Published	2021-03-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: compassplus

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

Am I affected?

Timeline

2021-03-19 04:15 UTCPublished CVE record published
2026-06-17 03:45 UTCUpdated Record last modified

compassplus tranzware e-commerce payment gateway UPGRADE

Affected: < 3.1.27.5

Fixed in: 3.1.27.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy tranzware-e-commerce-payment-gateway || rpm -q tranzware-e-commerce-payment-gateway || tranzware-e-commerce-payment-gateway --version

2. UPGRADE to 3.1.27.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade tranzware-e-commerce-payment-gateway

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade tranzware-e-commerce-payment-gateway

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-2021-28110?

tranzware e-commerce payment gateway: upgrade to 3.1.27.5. Exact commands for each OS are on this page.

Is CVE-2021-28110 being exploited?

CVE-2021-28110 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-2021-28110 affect?

CVE-2021-28110 affects tranzware e-commerce payment gateway. Severity is high (CVSS 7.5). /exec in TranzWare e-Commerce Payment Gateway (TWEC PG) before 3.1.27.5 had a vulnerability in its XML parser.

How urgent is CVE-2021-28110?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-28126 MEDIUM 6.1 UPGRADE index.jsp in TranzWare e-Commerce Payment Gateway (TWEC PG) before 3.1.27.5 had a Stored cross-site scripting

References

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