CVE-2019-10779: All versions of stroom:stroom-app before 5.5.12 and all versions of the 6.0.0 branch before 6.0.25 are affecte

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MEDIUM 6.1UPGRADE

CVE-2019-10779 is a medium-severity flaw (CVSS 6.1) affecting stroom. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

All versions of stroom:stroom-app before 5.5.12 and all versions of the 6.0.0 branch before 6.0.25 are affected by Cross-site Scripting. An attacker website is able to load the Stroom UI into a hidden iframe. Using that iframe, the attacker site can issue commands to the Stroom UI via an XSS vulnerability to take full control of the Stroom UI on behalf of the logged-in user.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-01-28
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: gchq

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

Am I affected?

Timeline

2020-01-28 01:15 UTCPublished CVE record published
2026-06-17 02:11 UTCUpdated Record last modified

gchq stroom UPGRADE

Affected: < 5.5.12 · >= 6.0 and < 6.0.25

Fixed in: 5.5.12, 6.0.25

Safe to downgrade to: a release before 6.0

1. Check installed version

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

2. UPGRADE to 5.5.12 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stroom

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 6.0 (Debian / Ubuntu)

apt-cache madison stroom sudo apt install stroom=<VERSION_BEFORE_6.0> sudo apt-mark hold stroom

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

dnf --showduplicates list stroom sudo dnf downgrade stroom-<VERSION_BEFORE_6.0> sudo dnf versionlock add stroom

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-2019-10779?

stroom: upgrade to 5.5.12, 6.0.25. Exact commands for each OS are on this page.

Is CVE-2019-10779 being exploited?

CVE-2019-10779 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-2019-10779 affect?

CVE-2019-10779 affects stroom. Severity is medium (CVSS 6.1). All versions of stroom:stroom-app before 5.5.12 and all versions of the 6.0.0 branch before 6.0.25 are affected by Cross-site Scripting. An attacker website is able to load the Stroom UI into a hidden iframe. Using that iframe, the attacker

How urgent is CVE-2019-10779?

Priority 41/100. Public exploit reference

References

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