CVE-2015-4387: Cross-site scripting (XSS) vulnerability in unspecified administration pages in the Password Policy module 6.x

Routine

LOW 2.6DOWNGRADE

CVE-2015-4387 is a low-severity flaw (CVSS 2.6) affecting password policy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in unspecified administration pages in the Password Policy module 6.x-1.x before 6.x-1.11 and 7.x-1.x before 7.x-1.11 for Drupal, when a site has a policy that uses the username constraint, allows remote attackers to inject arbitrary web script or HTML via a crafted username that is imported from an external source.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	2.6 (Low)
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-06-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: password policy project

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

Am I affected?

Timeline

2015-06-15 14:59 UTCPublished CVE record published
2026-06-17 00:27 UTCUpdated Record last modified

password policy project password policy DOWNGRADE

Affected: 6.x-1.0 · 6.x-1.1 · 6.x-1.2 · 6.x-1.3 · 6.x-1.4 · 6.x-1.5 · 6.x-1.6 · 6.x-1.7

Fixed in: no fixed release known

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

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 6.x-1.0 (Debian / Ubuntu)

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

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

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

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-2015-4387?

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

Is CVE-2015-4387 being exploited?

CVE-2015-4387 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-2015-4387 affect?

CVE-2015-4387 affects password policy. Severity is low (CVSS 2.6). Cross-site scripting (XSS) vulnerability in unspecified administration pages in the Password Policy module 6.x-1.x before 6.x-1.11 and 7.x-1.x before 7.x-1.11 for Drupal, when a site has a policy that uses the username constraint, allows re

How urgent is CVE-2015-4387?

Priority 26/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

Related CVEs

CVE-2022-35931 LOW 2.7 UPGRADE Nextcloud Password Policy is an app that enables a Nextcloud server admin to define certain rules for password
CVE-2013-4274 LOW 2.1 DOWNGRADE Cross-site scripting (XSS) vulnerability in the password_policy_admin_view function in password_policy.admin.i
CVE-2012-5552 MEDIUM 5.0 DOWNGRADE The Password policy module 6.x-1.x before 6.x-1.5 and 7.x-1.x before 7.x-1.3 for Drupal allows remote attacker
CVE-2012-1633 MEDIUM 6.8 DOWNGRADE Cross-site request forgery (CSRF) vulnerability in the Password Policy module before 6.x-1.4 and 7.x-1.0 beta3
CVE-2012-1632 LOW 2.1 UPGRADE Cross-site scripting (XSS) vulnerability in password_policy.admin.inc in the Password Policy module before 6.x

References

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