CVE-2024-39910: decidim is a Free Open-Source participatory democracy, citizen participation and open government for cities an

Q: How do I fix CVE-2024-39910?

decidim: upgrade to 0.27.7. Exact commands for each OS are on this page.

Q: Is CVE-2024-39910 being exploited?

CVE-2024-39910 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-2024-39910 affect?

CVE-2024-39910 affects decidim. Severity is medium (CVSS 5.4). decidim is a Free Open-Source participatory democracy, citizen participation and open government for cities and organizations. The WYSWYG editor QuillJS is subject to potential XSS attach in case the attacker manages to modify the HTML befo

Q: How urgent is CVE-2024-39910?

Priority 24/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2024-39910 is a medium-severity flaw (CVSS 5.4) affecting decidim. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

decidim is a Free Open-Source participatory democracy, citizen participation and open government for cities and organizations. The WYSWYG editor QuillJS is subject to potential XSS attach in case the attacker manages to modify the HTML before being uploaded to the server. The attacker is able to change e.g. to <svg onload=alert('XSS')> if they know how to craft these requests themselves. This issue has been addressed in release version 0.27.7. Al

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	High
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-09-16
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2024-09-16 19:16 UTCPublished CVE record published
2026-06-17 07:43 UTCUpdated Record last modified

decidim decidim UPGRADE

Affected: < 0.27.7

Fixed in: 0.27.7

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.27.7 (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.

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-2024-39910?

decidim: upgrade to 0.27.7. Exact commands for each OS are on this page.

Is CVE-2024-39910 being exploited?

CVE-2024-39910 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-2024-39910 affect?

CVE-2024-39910 affects decidim. Severity is medium (CVSS 5.4). decidim is a Free Open-Source participatory democracy, citizen participation and open government for cities and organizations. The WYSWYG editor QuillJS is subject to potential XSS attach in case the attacker manages to modify the HTML befo

How urgent is CVE-2024-39910?

Priority 24/100. No elevated risk signals yet.

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CVE-2025-65017 MEDIUM 6.5 UPGRADE Decidim is a participatory democracy framework
CVE-2024-45594 HIGH 7.7 UPGRADE Decidim is a participatory democracy framework
CVE-2024-32034 MEDIUM 6.8 UPGRADE decidim is a Free Open-Source participatory democracy, citizen participation and open government for cities an

References

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