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🛡️ CVE-2023-27554 — websphere-application-server

🟡 CVSS 6.3 — Medium ✅ No Known Exploit CWE-611 NVD
6.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

IBM WebSphere Application Server 8.5 and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 249185.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:L

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: Required — someone has to click, open or visit something.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: None.
  • Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2023-27554 is classified as CWE-611: XML External Entity Reference (XXE). An XML parser resolves external entities, letting a crafted document read local files or reach internal services.

Affected software

CVE-2023-27554 is recorded against 1 package.

  • websphere-application-server (from 9.0.0.0 up to 9.0.5.16)

Timeline and source

Published on 11 May 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

exchange.xforce.ibmcloud.com
www.ibm.com
exchange.xforce.ibmcloud.com
www.ibm.com

Other advisories for this package

websphere-application-server has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-611: XML External Entity Reference (XXE)) in other software:

Details

Severity MEDIUM
CVSS Score 6.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:L
CWE CWE-611
Public Exploit ✅ No
Source NVD
Published 2023-05-11
Updated 2026-08-20
Modified 2026-06-17

Affected Packages

Software From version Fixed in
websphere-application-server 9.0.0.0 9.0.5.16

Similar Threats

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