CVE-2023-28828: A vulnerability has been identified in Polarion ALM (All versions < V22R2)

Q: How do I fix CVE-2023-28828?

polarion alm: upgrade to 2304.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-28828 being exploited?

CVE-2023-28828 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-28828 affect?

CVE-2023-28828 affects polarion alm. Severity is medium (CVSS 5.9). A vulnerability has been identified in Polarion ALM (All versions < V22R2). The application contains a XML External Entity Injection (XXE) vulnerability. This could allow an attacker to view files on the application server filesystem.

Q: How urgent is CVE-2023-28828?

Priority 38/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.9REMOTEUPGRADE

CVE-2023-28828 is a medium-severity flaw (CVSS 5.9) affecting polarion alm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been identified in Polarion ALM (All versions < V22R2). The application contains a XML External Entity Injection (XXE) vulnerability. This could allow an attacker to view files on the application server filesystem.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-611
Published	2023-04-11
Last modified	2026-10-23

Publisher (CNA): Siemens AG · Vendor: siemens

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-04-11 10:15 UTCPublished CVE record published
2026-10-23 23:10 UTCUpdated Record last modified

siemens polarion alm UPGRADE

Affected: < 2304.0

Fixed in: 2304.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy polarion-alm || rpm -q polarion-alm || polarion-alm --version

2. UPGRADE to 2304.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade polarion-alm

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade polarion-alm

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora ELN · ntpd-rs · FIXED · 1.7.2-3.eln159 · FEDORA-2026-57e4a99310 · source

sudo dnf upgrade --advisory=FEDORA-2026-57e4a99310

Fedora 46 · moby-engine · FIXED · 29.9.2-2.fc46 · FEDORA-2026-4856be87b3 · source

sudo dnf upgrade --advisory=FEDORA-2026-4856be87b3

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-2023-28828?

polarion alm: upgrade to 2304.0. Exact commands for each OS are on this page.

Is CVE-2023-28828 being exploited?

CVE-2023-28828 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-2023-28828 affect?

CVE-2023-28828 affects polarion alm. Severity is medium (CVSS 5.9). A vulnerability has been identified in Polarion ALM (All versions < V22R2). The application contains a XML External Entity Injection (XXE) vulnerability. This could allow an attacker to view files on the application server filesystem.

How urgent is CVE-2023-28828?

Priority 38/100. Remotely exploitable, no login, no user action

References

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