CVE-2015-4377: Cross-site scripting (XSS) vulnerability in unspecified administration pages in the Petition module 6.x-1.x be

Routine

LOW 2.1DOWNGRADE

CVE-2015-4377 is a low-severity flaw (CVSS 2.1) affecting petition. 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 Petition module 6.x-1.x before 6.x-1.3 for Drupal allows remote authenticated users with the "create petition" permission to inject arbitrary web script or HTML via unknown vectors.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	2.1 (Low)
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-06-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: petition 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

petition project petition DOWNGRADE

Affected: 6.x-1.0 · 6.x-1.1 · 6.x-1.2

Fixed in: no fixed release known

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

1. Check installed version

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

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

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

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

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

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-2015-4377?

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

Is CVE-2015-4377 being exploited?

CVE-2015-4377 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-2015-4377 affect?

CVE-2015-4377 affects petition. Severity is low (CVSS 2.1). Cross-site scripting (XSS) vulnerability in unspecified administration pages in the Petition module 6.x-1.x before 6.x-1.3 for Drupal allows remote authenticated users with the "create petition" permission to inject arbitrary web script or

How urgent is CVE-2015-4377?

Priority 23/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

References

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