CVE-2013-4275: Cross-site scripting (XSS) vulnerability in the zen_breadcrumb function in template.php in the Zen theme 6.x-1

This month

MEDIUM 5.4UPGRADE

CVE-2013-4275 is a medium-severity flaw (CVSS 5.4) affecting zen. 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 zen_breadcrumb function in template.php in the Zen theme 6.x-1.x, 7.x-3.x before 7.x-3.2, and 7.x-5.x before 7.x-5.4 for Drupal allows remote authenticated users with the "administer themes" permission to inject arbitrary web script or HTML via the breadcrumb separator field.

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	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-11-13
Last modified	2026-06-16

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

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-11-13 21:15 UTCPublished CVE record published
2026-06-16 23:56 UTCUpdated Record last modified

zen project zen UPGRADE

Affected: >= 6.x-1.0 and <= 6.x-1.3 · >= 7.x-3.0 and < 7.x-3.2 · >= 7.x-5.0 and < 7.x-5.4

Fixed in: 7.x-3.2, 7.x-5.4

Safe to downgrade to: a release before 6.x-1.0

1. Check installed version

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

2. UPGRADE to 7.x-3.2 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zen

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.x-1.0 (Debian / Ubuntu)

apt-cache madison zen sudo apt install zen=<VERSION_BEFORE_6.x-1.0> sudo apt-mark hold zen

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

dnf --showduplicates list zen sudo dnf downgrade zen-<VERSION_BEFORE_6.x-1.0> sudo dnf versionlock add zen

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-2013-4275?

zen: upgrade to 7.x-3.2, 7.x-5.4. Exact commands for each OS are on this page.

Is CVE-2013-4275 being exploited?

CVE-2013-4275 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-2013-4275 affect?

CVE-2013-4275 affects zen. Severity is medium (CVSS 5.4). Cross-site scripting (XSS) vulnerability in the zen_breadcrumb function in template.php in the Zen theme 6.x-1.x, 7.x-3.x before 7.x-3.2, and 7.x-5.x before 7.x-5.4 for Drupal allows remote authenticated users with the "administer themes" p

How urgent is CVE-2013-4275?

Priority 40/100. Public exploit reference

Software pages

Drupal vulnerabilities · PHP vulnerabilities

Related CVEs

CVE-2022-40756 HIGH 8.8 UPGRADE UPGRADE If folder security is misconfigured for Actian Zen PSQL BEFORE Patch Update 1 for Zen 15 SP1 (v15.11.005), Pat

References

← Back to latest CVEs