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Vulnerabilities

Vulnerability · CVE-2023-28828

A vulnerability has been identified in Polarion ALM (All versions < V22R2).

Published Apr 11, 2023 · catalog updated Oct 23, 2026 · polarion alm

Last checked Oct 24, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2023-28828. EPSS is 0.59%. Act only if a listed version of polarion alm is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.59%
Remediation
Version ranges on file
Affected products
cpe siemens/polarion alm

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe siemens/polarion alm< 2304.0

How to fix CVE-2023-28828

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2023-28828. EPSS is 0.59%. Act only if a listed version of polarion alm is installed.

Which versions are affected?

Compare what you have installed with siemens/polarion alm < 2304.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-611: XML External Entity (XXE). EPSS 0.59%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 11, 2023 · NIST NVD

    Detected

    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.

  2. Oct 23, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2023-28828

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-28828

    30-day exploitation probability 0.59%

    first.org
  • NIST NVDVulnerability recordCVE-2023-28828

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 24, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 24, 2026
  • FIRST EPSSOct 24, 2026
  • NIST NVDOct 24, 2026