CVE-2015-3161: The search bar code in bkr/server/widgets.py in Beaker before 20.1 does not escape </script> tags in string li

Q: How do I fix CVE-2015-3161?

beaker: upgrade to newer than 20.0. Exact commands for each OS are on this page.

Q: Is CVE-2015-3161 being exploited?

CVE-2015-3161 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-2015-3161 affect?

CVE-2015-3161 affects beaker. Severity is medium (CVSS 4.8). The search bar code in bkr/server/widgets.py in Beaker before 20.1 does not escape tags in string literals when producing JSON.

Routine

MEDIUM 4.8UPGRADE

CVE-2015-3161 is a medium-severity flaw (CVSS 4.8) affecting beaker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The search bar code in bkr/server/widgets.py in Beaker before 20.1 does not escape </script> tags in string literals when producing JSON.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.8% (top 42%)
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 UPGRADE

Affected: <= 20.0

Fixed in: newer than 20.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 20.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade beaker

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-2015-3161?

beaker: upgrade to newer than 20.0. Exact commands for each OS are on this page.

Is CVE-2015-3161 being exploited?

CVE-2015-3161 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-2015-3161 affect?

CVE-2015-3161 affects beaker. Severity is medium (CVSS 4.8). The search bar code in bkr/server/widgets.py in Beaker before 20.1 does not escape </script> tags in string literals when producing JSON.

How urgent is CVE-2015-3161?

Priority 31/100. No elevated risk signals yet.

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References

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