CVE-2020-6948: A remote code execution issue was discovered in HashBrown CMS through 1.3.3

Q: How do I fix CVE-2020-6948?

hashbrown cms: upgrade to newer than 1.3.3. Exact commands for each OS are on this page.

Q: Is CVE-2020-6948 being exploited?

CVE-2020-6948 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-2020-6948 affect?

CVE-2020-6948 affects hashbrown cms. Severity is critical (CVSS 9.8). A remote code execution issue was discovered in HashBrown CMS through 1.3.3. Server/Entity/Deployer/GitDeployer.js has a Service.AppService.exec call that mishandles the URL, repository, username, and password.

Q: How urgent is CVE-2020-6948?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2020-6948 is a critical-severity flaw (CVSS 9.8) affecting hashbrown cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A remote code execution issue was discovered in HashBrown CMS through 1.3.3. Server/Entity/Deployer/GitDeployer.js has a Service.AppService.exec call that mishandles the URL, repository, username, and password.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.8% (top 14%)
CISA exploited list	No
Weakness	CWE-78
Published	2020-01-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hashbrowncms

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

Am I affected?

Timeline

2020-01-13 19:15 UTCPublished CVE record published
2026-06-17 03:24 UTCUpdated Record last modified

hashbrowncms hashbrown cms UPGRADE

Affected: <= 1.3.3

Fixed in: newer than 1.3.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy hashbrown-cms || rpm -q hashbrown-cms || hashbrown-cms --version

2. UPGRADE to newer than 1.3.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade hashbrown-cms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade hashbrown-cms

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-2020-6948?

hashbrown cms: upgrade to newer than 1.3.3. Exact commands for each OS are on this page.

Is CVE-2020-6948 being exploited?

CVE-2020-6948 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-2020-6948 affect?

CVE-2020-6948 affects hashbrown cms. Severity is critical (CVSS 9.8). A remote code execution issue was discovered in HashBrown CMS through 1.3.3. Server/Entity/Deployer/GitDeployer.js has a Service.AppService.exec call that mishandles the URL, repository, username, and password.

How urgent is CVE-2020-6948?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-6949 HIGH 8.8 UPGRADE A privilege escalation issue was discovered in the postUser function in HashBrown CMS through 1.3.3
CVE-2020-5840 HIGH 7.5 UPGRADE An issue was discovered in HashBrown CMS before 1.3.2

References

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