CVE-2021-47788: WebsiteBaker 2.13.0 contains an authenticated remote code execution vulnerability that allows users with langu

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HIGH 8.8DOWNGRADE

CVE-2021-47788 is a high-severity flaw (CVSS 8.8) affecting websitebaker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

WebsiteBaker 2.13.0 contains an authenticated remote code execution vulnerability that allows users with language editing permissions to execute arbitrary code. Attackers can exploit the language installation endpoint by manipulating language installation parameters to achieve remote code execution on the server.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-434
Published	2026-01-16
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: websitebaker

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

Am I affected?

Timeline

2026-01-16 00:16 UTCPublished CVE record published
2026-06-17 04:18 UTCUpdated Record last modified

websitebaker websitebaker DOWNGRADE

Affected: 2.13.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.13.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.13.0 (Debian / Ubuntu)

apt-cache madison websitebaker sudo apt install websitebaker=<VERSION_BEFORE_2.13.0> sudo apt-mark hold websitebaker

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

dnf --showduplicates list websitebaker sudo dnf downgrade websitebaker-<VERSION_BEFORE_2.13.0> sudo dnf versionlock add websitebaker

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-2021-47788?

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

Is CVE-2021-47788 being exploited?

CVE-2021-47788 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-2021-47788 affect?

CVE-2021-47788 affects websitebaker. Severity is high (CVSS 8.8). WebsiteBaker 2.13.0 contains an authenticated remote code execution vulnerability that allows users with language editing permissions to execute arbitrary code. Attackers can exploit the language installation endpoint by manipulating langua

How urgent is CVE-2021-47788?

Priority 51/100. High severity; Public exploit reference

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References

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