CVE-2011-5187: Cross-site scripting (XSS) vulnerability in the Support Ticketing System module 6.x-1.x before 6.x-1.7 for Dru

Routine

LOW 2.1DOWNGRADE

CVE-2011-5187 is a low-severity flaw (CVSS 2.1) affecting support. 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 Support Ticketing System module 6.x-1.x before 6.x-1.7 for Drupal allows remote authenticated users with the "administer support projects" permission to inject arbitrary web script or HTML via unspecified 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	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-79
Published	2012-09-20
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: tag1consulting

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

Am I affected?

Timeline

2012-09-20 10:55 UTCPublished CVE record published
2026-06-16 23:36 UTCUpdated Record last modified

tag1consulting support DOWNGRADE

Affected: 6.x-1.0 · 6.x-1.0 rc1 · 6.x-1.0 rc2 · 6.x-1.1 rc1 · 6.x-1.2 · 6.x-1.2 rc1 · 6.x-1.3 · 6.x-1.3 rc1

Fixed in: no fixed release known

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

1. Check installed version

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

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

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

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

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

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-2011-5187?

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

Is CVE-2011-5187 being exploited?

CVE-2011-5187 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-2011-5187 affect?

CVE-2011-5187 affects support. Severity is low (CVSS 2.1). Cross-site scripting (XSS) vulnerability in the Support Ticketing System module 6.x-1.x before 6.x-1.7 for Drupal allows remote authenticated users with the "administer support projects" permission to inject arbitrary web script or HTML via

How urgent is CVE-2011-5187?

Priority 23/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

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References

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