CVE-2015-5503: Open redirect vulnerability in the Chamilo integration module 7.x-1.x before 7.x-1.2 for Drupal allows remote

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MEDIUM 5.8DOWNGRADE

CVE-2015-5503 is a medium-severity flaw (CVSS 5.8) affecting chamilo integration. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Open redirect vulnerability in the Chamilo integration module 7.x-1.x before 7.x-1.2 for Drupal allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified parameters.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.8 (Medium)
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Published	2015-08-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: chamilo integration project

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

Am I affected?

Timeline

2015-08-18 18:00 UTCPublished CVE record published
2026-06-17 00:29 UTCUpdated Record last modified

chamilo integration project chamilo integration DOWNGRADE

Affected: 7.x-1.0 · 7.x-1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.x-1.0

1. Check installed version

apt-cache policy chamilo-integration || rpm -q chamilo-integration || chamilo-integration --version

2. No fixed release: DOWNGRADE to a release before 7.x-1.0 (Debian / Ubuntu)

apt-cache madison chamilo-integration sudo apt install chamilo-integration=<VERSION_BEFORE_7.x-1.0> sudo apt-mark hold chamilo-integration

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

dnf --showduplicates list chamilo-integration sudo dnf downgrade chamilo-integration-<VERSION_BEFORE_7.x-1.0> sudo dnf versionlock add chamilo-integration

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-2015-5503?

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

Is CVE-2015-5503 being exploited?

CVE-2015-5503 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-2015-5503 affect?

CVE-2015-5503 affects chamilo integration. Severity is medium (CVSS 5.8). Open redirect vulnerability in the Chamilo integration module 7.x-1.x before 7.x-1.2 for Drupal allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified parameters.

How urgent is CVE-2015-5503?

Priority 40/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

References

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