CVE-2018-1000847: FreshDNS version 1.0.3 and prior contains a Cross Site Scripting (XSS) vulnerability in Account data form; Zon

Q: How do I fix CVE-2018-1000847?

freshdns: upgrade to newer than 1.0.3. Exact commands for each OS are on this page.

Q: Is CVE-2018-1000847 being exploited?

CVE-2018-1000847 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-2018-1000847 affect?

CVE-2018-1000847 affects freshdns. Severity is medium (CVSS 5.4). FreshDNS version 1.0.3 and prior contains a Cross Site Scripting (XSS) vulnerability in Account data form; Zone editor that can result in Execution of attacker's JavaScript code in victim's session. This attack appear to be exploitable via

Q: How urgent is CVE-2018-1000847?

Priority 33/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2018-1000847 is a medium-severity flaw (CVSS 5.4) affecting freshdns. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FreshDNS version 1.0.3 and prior contains a Cross Site Scripting (XSS) vulnerability in Account data form; Zone editor that can result in Execution of attacker's JavaScript code in victim's session. This attack appear to be exploitable via The attacker stores a specially crafted string as their Full Name in their account details. The victim (e.g. the administrator of the FreshDNS instance) opens the User List in the admin interface.. This vulnera

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-12-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: freshdns project

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

Am I affected?

Timeline

2018-12-20 15:29 UTCPublished CVE record published
2026-06-17 01:33 UTCUpdated Record last modified

freshdns project freshdns UPGRADE

Affected: <= 1.0.3

Fixed in: newer than 1.0.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.0.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade freshdns

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-2018-1000847?

freshdns: upgrade to newer than 1.0.3. Exact commands for each OS are on this page.

Is CVE-2018-1000847 being exploited?

CVE-2018-1000847 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-2018-1000847 affect?

CVE-2018-1000847 affects freshdns. Severity is medium (CVSS 5.4). FreshDNS version 1.0.3 and prior contains a Cross Site Scripting (XSS) vulnerability in Account data form; Zone editor that can result in Execution of attacker's JavaScript code in victim's session. This attack appear to be exploitable via

How urgent is CVE-2018-1000847?

Priority 33/100. No elevated risk signals yet.

Related CVEs

CVE-2018-1000846 HIGH 8.8 UPGRADE FreshDNS version 1.0.3 and earlier contains a Cross ite Request Forgery (CSRF) vulnerability in All (authentic

References

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