Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2024-21690: This High severity Reflected XSS and CSRF (Cross-Site Request Forgery) vulnerability was introduced in version

42
This month
HIGH 8.2UPGRADEUPGRADE

CVE-2024-21690 is a high-severity flaw (CVSS 8.2) affecting confluence data center, confluence server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

This High severity Reflected XSS and CSRF (Cross-Site Request Forgery) vulnerability was introduced in versions 7.19.0, 7.20.0, 8.0.0, 8.1.0, 8.2.0, 8.3.0, 8.4.0, 8.5.0, 8.6.0, 8.7.1, 8.8.0, and 8.9.0 of Confluence Data Center and Server. This Reflected XSS and CSRF (Cross-Site Request Forgery) vulnerability, with a CVSS Score of 7.1, allows an unauthenticated attacker to execute arbitrary HTML or JavaScript code on a victims browser and forc

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.2 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionRequired
EPSS exploit chance0.7% (top 45%)
CISA exploited listNo
WeaknessCWE-79
Published2024-08-21
Last modified2026-06-17
Publisher (CNA): Atlassian · Vendor: atlassian

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

atlassian confluence data center UPGRADE
Affected: >= 7.19.0 and <= 7.19.25 · >= 7.20.0 and <= 7.20.3 · >= 8.0.0 and <= 8.0.4 · >= 8.1.0 and <= 8.1.4 · >= 8.2.0 and <= 8.2.3 · >= 8.3.0 and <= 8.3.4 · >= 8.4.0 and <= 8.4.5 · >= 8.5.0 and <= 8.5.12
Fixed in: newer than 8.9.4
Safe to downgrade to: a release before 7.19.0
1. Check installed version
apt-cache policy confluence-data-center || rpm -q confluence-data-center || confluence-data-center --version
2. UPGRADE to newer than 8.9.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade confluence-data-center
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade confluence-data-center
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 7.19.0 (Debian / Ubuntu)
apt-cache madison confluence-data-center sudo apt install confluence-data-center=<VERSION_BEFORE_7.19.0> sudo apt-mark hold confluence-data-center
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list confluence-data-center sudo dnf downgrade confluence-data-center-<VERSION_BEFORE_7.19.0> sudo dnf versionlock add confluence-data-center
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.
atlassian confluence server UPGRADE
Affected: >= 7.19.0 and <= 7.19.25 · >= 7.20.0 and <= 7.20.3 · >= 8.0.0 and <= 8.0.4 · >= 8.1.0 and <= 8.1.4 · >= 8.2.0 and <= 8.2.3 · >= 8.3.0 and <= 8.3.4 · >= 8.4.0 and <= 8.4.5 · >= 8.5.0 and <= 8.5.12
Fixed in: newer than 8.9.4
Safe to downgrade to: a release before 7.19.0
1. Check installed version
apt-cache policy confluence-server || rpm -q confluence-server || confluence-server --version
2. UPGRADE to newer than 8.9.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade confluence-server
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade confluence-server
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 7.19.0 (Debian / Ubuntu)
apt-cache madison confluence-server sudo apt install confluence-server=<VERSION_BEFORE_7.19.0> sudo apt-mark hold confluence-server
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list confluence-server sudo dnf downgrade confluence-server-<VERSION_BEFORE_7.19.0> sudo dnf versionlock add confluence-server
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-2024-21690?

confluence data center: upgrade to newer than 8.9.4; confluence server: upgrade to newer than 8.9.4. Exact commands for each OS are on this page.

Is CVE-2024-21690 being exploited?

CVE-2024-21690 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-2024-21690 affect?

CVE-2024-21690 affects confluence data center, confluence server. Severity is high (CVSS 8.2). This High severity Reflected XSS and CSRF (Cross-Site Request Forgery) vulnerability was introduced in versions 7.19.0, 7.20.0, 8.0.0, 8.1.0, 8.2.0, 8.3.0, 8.4.0, 8.5.0, 8.6.0, 8.7.1, 8.8.0, and 8.9.0 of Confluence Data Center and Server.

How urgent is CVE-2024-21690?

Priority 42/100. High severity

Software pages

Atlassian Confluence vulnerabilities

Related CVEs

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.