CVE-2021-42584: A Stored Cross Site Scripting (XSS) issue exists in Convos-Chat before 6.32.

Q: How do I fix CVE-2021-42584?

convos: upgrade to 6.32. Exact commands for each OS are on this page.

Q: Is CVE-2021-42584 being exploited?

CVE-2021-42584 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-2021-42584 affect?

CVE-2021-42584 affects convos. Severity is medium (CVSS 5.4). A Stored Cross Site Scripting (XSS) issue exists in Convos-Chat before 6.32.

Q: How urgent is CVE-2021-42584?

Priority 38/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2021-42584 is a medium-severity flaw (CVSS 5.4) affecting convos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Stored Cross Site Scripting (XSS) issue exists in Convos-Chat before 6.32.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-12-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: convos

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

Am I affected?

Timeline

2021-12-17 14:15 UTCPublished CVE record published
2026-06-17 04:09 UTCUpdated Record last modified

convos convos UPGRADE

Affected: < 6.32

Fixed in: 6.32

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 6.32 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade convos

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-2021-42584?

convos: upgrade to 6.32. Exact commands for each OS are on this page.

Is CVE-2021-42584 being exploited?

CVE-2021-42584 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-2021-42584 affect?

CVE-2021-42584 affects convos. Severity is medium (CVSS 5.4). A Stored Cross Site Scripting (XSS) issue exists in Convos-Chat before 6.32.

How urgent is CVE-2021-42584?

Priority 38/100. Public exploit reference

Related CVEs

CVE-2022-21650 HIGH 7.6 UPGRADE Convos is an open source multi-user chat that runs in a web browser
CVE-2022-21649 HIGH 7.6 UPGRADE Convos is an open source multi-user chat that runs in a web browser

References

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