CVE-2021-47768: ImportExportTools NG 10.0.4 contains a persistent HTML injection vulnerability in the email export module that

Routine

MEDIUM 6.1DOWNGRADE

CVE-2021-47768 is a medium-severity flaw (CVSS 6.1) affecting importexporttools ng. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ImportExportTools NG 10.0.4 contains a persistent HTML injection vulnerability in the email export module that allows remote attackers to inject malicious HTML payloads. Attackers can send emails with crafted HTML in the subject that execute during HTML export, potentially compromising user data or session credentials.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-01-15
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: cleidigh

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

Am I affected?

Timeline

2026-01-15 16:16 UTCPublished CVE record published
2026-06-17 04:18 UTCUpdated Record last modified

cleidigh importexporttools ng DOWNGRADE

Affected: 10.0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0.4

1. Check installed version

apt-cache policy importexporttools-ng || rpm -q importexporttools-ng || importexporttools-ng --version

2. No fixed release: DOWNGRADE to a release before 10.0.4 (Debian / Ubuntu)

apt-cache madison importexporttools-ng sudo apt install importexporttools-ng=<VERSION_BEFORE_10.0.4> sudo apt-mark hold importexporttools-ng

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

dnf --showduplicates list importexporttools-ng sudo dnf downgrade importexporttools-ng-<VERSION_BEFORE_10.0.4> sudo dnf versionlock add importexporttools-ng

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-2021-47768?

importexporttools ng: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-47768 being exploited?

CVE-2021-47768 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-2021-47768 affect?

CVE-2021-47768 affects importexporttools ng. Severity is medium (CVSS 6.1). ImportExportTools NG 10.0.4 contains a persistent HTML injection vulnerability in the email export module that allows remote attackers to inject malicious HTML payloads. Attackers can send emails with crafted HTML in the subject that execut

How urgent is CVE-2021-47768?

Priority 34/100. Public exploit reference

References

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