CVE-2015-3162: Cross-site scripting (XSS) vulnerability in the edit comment dialog in bkr/server/widgets.py in Beaker 20.1 al

Routine

MEDIUM 5.4DOWNGRADE

CVE-2015-3162 is a medium-severity flaw (CVSS 5.4) affecting beaker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in the edit comment dialog in bkr/server/widgets.py in Beaker 20.1 allows remote authenticated users to inject arbitrary web script or HTML via writing a crafted comment on an acked or nacked canceled job.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-09-06
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: beaker-project

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

Am I affected?

Timeline

2017-09-06 21:29 UTCPublished CVE record published
2026-06-17 00:25 UTCUpdated Record last modified

beaker-project beaker DOWNGRADE

Affected: 20.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 20.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 20.1 (Debian / Ubuntu)

apt-cache madison beaker sudo apt install beaker=<VERSION_BEFORE_20.1> sudo apt-mark hold beaker

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list beaker sudo dnf downgrade beaker-<VERSION_BEFORE_20.1> sudo dnf versionlock add beaker

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-2015-3162?

beaker: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-3162 being exploited?

CVE-2015-3162 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-2015-3162 affect?

CVE-2015-3162 affects beaker. Severity is medium (CVSS 5.4). Cross-site scripting (XSS) vulnerability in the edit comment dialog in bkr/server/widgets.py in Beaker 20.1 allows remote authenticated users to inject arbitrary web script or HTML via writing a crafted comment on an acked or nacked cancele

How urgent is CVE-2015-3162?

Priority 34/100. No elevated risk signals yet.

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References

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