CVE-2019-18924: Systematic IRIS WebForms 5.4 is vulnerable to directory traversal

This month

MEDIUM 5.3REMOTEDOWNGRADE

CVE-2019-18924 is a medium-severity flaw (CVSS 5.3) affecting iris webforms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Systematic IRIS WebForms 5.4 is vulnerable to directory traversal. By manipulating variables that reference files with ../ (and variations), it is possible to list all the directories and check if a particular file exists.

Why this priority

Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-22
Published	2019-11-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: systematic

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

Am I affected?

Timeline

2019-11-12 17:15 UTCPublished CVE record published
2026-06-17 02:25 UTCUpdated Record last modified

systematic iris webforms DOWNGRADE

Affected: 5.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.4

1. Check installed version

apt-cache policy iris-webforms || rpm -q iris-webforms || iris-webforms --version

2. No fixed release: DOWNGRADE to a release before 5.4 (Debian / Ubuntu)

apt-cache madison iris-webforms sudo apt install iris-webforms=<VERSION_BEFORE_5.4> sudo apt-mark hold iris-webforms

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

dnf --showduplicates list iris-webforms sudo dnf downgrade iris-webforms-<VERSION_BEFORE_5.4> sudo dnf versionlock add iris-webforms

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-2019-18924?

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

Is CVE-2019-18924 being exploited?

CVE-2019-18924 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-2019-18924 affect?

CVE-2019-18924 affects iris webforms. Severity is medium (CVSS 5.3). Systematic IRIS WebForms 5.4 is vulnerable to directory traversal. By manipulating variables that reference files with ../ (and variations), it is possible to list all the directories and check if a particular file exists.

How urgent is CVE-2019-18924?

Priority 41/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2019-18925 CRITICAL 9.8 DOWNGRADE Systematic IRIS WebForms 5.4 and its functionalities can be accessed and used without any form of authenticati

References

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