CVE-2023-49782: Collabora Online is a collaborative online office suite based on LibreOffice technology

Q: How do I fix CVE-2023-49782?

richdocumentscode: upgrade to 23.5.601. Exact commands for each OS are on this page.

Q: Is CVE-2023-49782 being exploited?

CVE-2023-49782 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-2023-49782 affect?

CVE-2023-49782 affects richdocumentscode. Severity is high (CVSS 7.1). Collabora Online is a collaborative online office suite based on LibreOffice technology. Users of Nextcloud with `Collabora Online - Built-in CODE Server` app can be vulnerable to attack via proxy.php. The bug was fixed in Collabora Online

Routine

HIGH 7.1UPGRADE

CVE-2023-49782 is a high-severity flaw (CVSS 7.1) affecting richdocumentscode. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Collabora Online is a collaborative online office suite based on LibreOffice technology. Users of Nextcloud with `Collabora Online - Built-in CODE Server` app can be vulnerable to attack via proxy.php. The bug was fixed in Collabora Online - Built-in CODE Server (richdocumentscode) release 23.5.601. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-12-08
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2023-12-08 20:15 UTCPublished CVE record published
2026-06-17 06:36 UTCUpdated Record last modified

collaboraoffice richdocumentscode UPGRADE

Affected: < 23.5.601

Fixed in: 23.5.601

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 23.5.601 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade richdocumentscode

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-2023-49782?

richdocumentscode: upgrade to 23.5.601. Exact commands for each OS are on this page.

Is CVE-2023-49782 being exploited?

CVE-2023-49782 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-2023-49782 affect?

CVE-2023-49782 affects richdocumentscode. Severity is high (CVSS 7.1). Collabora Online is a collaborative online office suite based on LibreOffice technology. Users of Nextcloud with `Collabora Online - Built-in CODE Server` app can be vulnerable to attack via proxy.php. The bug was fixed in Collabora Online

How urgent is CVE-2023-49782?

Priority 34/100. High severity

Software pages

PHP vulnerabilities · Nextcloud vulnerabilities · LibreOffice vulnerabilities

Related CVEs

CVE-2023-49788 HIGH 7.2 UPGRADE Collabora Online is a collaborative online office suite based on LibreOffice technology

References

← Back to latest CVEs