CVE-2021-30171: Special characters of ERP POS news page are not filtered in users’ input, which allow remote authenticated att

Routine

MEDIUM 4.6DOWNGRADE

CVE-2021-30171 is a medium-severity flaw (CVSS 4.6) affecting enterprise resource planning point of sale system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Special characters of ERP POS news page are not filtered in users’ input, which allow remote authenticated attackers can inject malicious JavaScript and carry out stored XSS (Stored Cross-site scripting) attacks, additionally access and manipulate customer’s information.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.6 (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	2021-05-07
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: junhetec

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

Am I affected?

Timeline

2021-05-07 10:15 UTCPublished CVE record published
2026-06-17 03:49 UTCUpdated Record last modified

junhetec enterprise resource planning point of sale system DOWNGRADE

Affected: 2013.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 2013.10

1. Check installed version

apt-cache policy enterprise-resource-planning-point-of-sale-system || rpm -q enterprise-resource-planning-point-of-sale-system || enterprise-resource-planning-point-of-sale-system --version

2. No fixed release: DOWNGRADE to a release before 2013.10 (Debian / Ubuntu)

apt-cache madison enterprise-resource-planning-point-of-sale-system sudo apt install enterprise-resource-planning-point-of-sale-system=<VERSION_BEFORE_2013.10> sudo apt-mark hold enterprise-resource-planning-point-of-sale-system

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

dnf --showduplicates list enterprise-resource-planning-point-of-sale-system sudo dnf downgrade enterprise-resource-planning-point-of-sale-system-<VERSION_BEFORE_2013.10> sudo dnf versionlock add enterprise-resource-planning-point-of-sale-system

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-2021-30171?

enterprise resource planning point of sale system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-30171 being exploited?

CVE-2021-30171 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-2021-30171 affect?

CVE-2021-30171 affects enterprise resource planning point of sale system. Severity is medium (CVSS 4.6). Special characters of ERP POS news page are not filtered in users’ input, which allow remote authenticated attackers can inject malicious JavaScript and carry out stored XSS (Stored Cross-site scripting) attacks, additionally access and man

How urgent is CVE-2021-30171?

Priority 28/100. No elevated risk signals yet.

Related CVEs

CVE-2021-30170 MEDIUM 4.6 DOWNGRADE Special characters of ERP POS customer profile page are not filtered in users’ input, which allow remote authe

References

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