CVE-2023-48220: Decidim is a participatory democracy framework

Routine

MEDIUM 5.7UPGRADEUPGRADE

CVE-2023-48220 is a medium-severity flaw (CVSS 5.7) affecting decidim, devise invitable. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Decidim is a participatory democracy framework. Starting in version 0.4.rc3 and prior to version 2.0.9 of the `devise_invitable` gem, the invites feature allows users to accept the invitation for an unlimited amount of time through the password reset functionality. This issue creates vulnerable dependencies starting in version 0.0.1.alpha3 and prior to versions 0.26.9, 0.27.5, and 0.28.0 of the `decidim,` `decidim-admin`, and `decidim-system` gem

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.7 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-672
Published	2024-02-20
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: decidim · scambra

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

Am I affected?

Timeline

2024-02-20 18:15 UTCPublished CVE record published
2026-06-17 06:33 UTCUpdated Record last modified

decidim decidim UPGRADE

Affected: >= 0.0.2 and < 0.26.9 · >= 0.27.0 and < 0.27.5 · 0.0.1 · 0.0.1 alpha3 · 0.0.1 alpha4 · 0.0.1 alpha5 · 0.0.1 alpha6 · 0.0.1 alpha7

Fixed in: 0.26.9, 0.27.5

Safe to downgrade to: a release before 0.0.1

1. Check installed version

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

2. UPGRADE to 0.26.9 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade decidim

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.0.1 (Debian / Ubuntu)

apt-cache madison decidim sudo apt install decidim=<VERSION_BEFORE_0.0.1> sudo apt-mark hold decidim

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list decidim sudo dnf downgrade decidim-<VERSION_BEFORE_0.0.1> sudo dnf versionlock add decidim

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.

scambra devise invitable UPGRADE

Affected: >= 0.4.1 and < 2.0.9 · 0.4.0 · 0.4.0 rc3 · 0.4.0 rc4 · 0.4.0 rc5

Fixed in: 2.0.9

Safe to downgrade to: a release before 0.4.0

1. Check installed version

apt-cache policy devise-invitable || rpm -q devise-invitable || devise-invitable --version

2. UPGRADE to 2.0.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade devise-invitable

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade devise-invitable

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.4.0 (Debian / Ubuntu)

apt-cache madison devise-invitable sudo apt install devise-invitable=<VERSION_BEFORE_0.4.0> sudo apt-mark hold devise-invitable

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list devise-invitable sudo dnf downgrade devise-invitable-<VERSION_BEFORE_0.4.0> sudo dnf versionlock add devise-invitable

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-2023-48220?

decidim: upgrade to 0.26.9, 0.27.5; devise invitable: upgrade to 2.0.9. Exact commands for each OS are on this page.

Is CVE-2023-48220 being exploited?

CVE-2023-48220 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-2023-48220 affect?

CVE-2023-48220 affects decidim, devise invitable. Severity is medium (CVSS 5.7). Decidim is a participatory democracy framework. Starting in version 0.4.rc3 and prior to version 2.0.9 of the `devise_invitable` gem, the invites feature allows users to accept the invitation for an unlimited amount of time through the pass

How urgent is CVE-2023-48220?

Priority 34/100. No elevated risk signals yet.

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References

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