CVE-2020-36944: ILIAS Learning Management System 4.3 contains a server-side request forgery vulnerability that allows attacker

Routine

MEDIUM 4.0UPGRADE

CVE-2020-36944 is a medium-severity flaw (CVSS 4.0) affecting ilias. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ILIAS Learning Management System 4.3 contains a server-side request forgery vulnerability that allows attackers to read local files through portfolio PDF export functionality. Attackers can inject a script that uses XMLHttpRequest to retrieve local file contents when the portfolio is exported to PDF.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.0 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-01-28
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: ilias

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

Am I affected?

Timeline

2026-01-28 18:16 UTCPublished CVE record published
2026-06-17 03:16 UTCUpdated Record last modified

ilias ilias UPGRADE

Affected: >= 4.3.0 and <= 5.1.0

Fixed in: newer than 5.1.0

Safe to downgrade to: a release before 4.3.0

1. Check installed version

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

2. UPGRADE to newer than 5.1.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ilias

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 4.3.0 (Debian / Ubuntu)

apt-cache madison ilias sudo apt install ilias=<VERSION_BEFORE_4.3.0> sudo apt-mark hold ilias

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

dnf --showduplicates list ilias sudo dnf downgrade ilias-<VERSION_BEFORE_4.3.0> sudo dnf versionlock add ilias

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-2020-36944?

ilias: upgrade to newer than 5.1.0. Exact commands for each OS are on this page.

Is CVE-2020-36944 being exploited?

CVE-2020-36944 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-2020-36944 affect?

CVE-2020-36944 affects ilias. Severity is medium (CVSS 4.0). ILIAS Learning Management System 4.3 contains a server-side request forgery vulnerability that allows attackers to read local files through portfolio PDF export functionality. Attackers can inject a script that uses XMLHttpRequest to retrie

How urgent is CVE-2020-36944?

Priority 22/100. Public exploit reference

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References

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