How severe is CVE-2023-4550?

CVE-2023-4550 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-4550 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4550?

CVE-2023-4550 affects Opentext Appbuilder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4550?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-4550 have an EU (EUVD) identifier?

Yes. CVE-2023-4550 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-54405.

When was CVE-2023-4550 published?

CVE-2023-4550 was published on 2024-01-29 and last updated on 2026-06-17.

CVE-2023-4550

CVE-2023-4550 is a high-severity vulnerability in Opentext Appbuilder with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-552.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-54405
Weakness: CWE-552
Affected product: Opentext Appbuilder
Published: 2024-01-29
Last modified: 2026-06-17

Description

Improper Input Validation, Files or Directories Accessible to External Parties vulnerability in OpenText AppBuilder on Windows, Linux allows Probe System Files. An unauthenticated or authenticated user can abuse a page of AppBuilder to read arbitrary files on the server on which it is hosted. This issue affects AppBuilder: from 21.2 before 23.2.

Frequently asked questions

What is CVE-2023-4550?: Improper Input Validation, Files or Directories Accessible to External Parties vulnerability in OpenText AppBuilder on Windows, Linux allows Probe System Files. An unauthenticated or authenticated user can abuse a page of AppBuilder to read arbitrary files on the server on which it is hosted. This issue affects AppBuilder: from 21.2 before 23.2.
How severe is CVE-2023-4550?: CVE-2023-4550 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-4550 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4550?: CVE-2023-4550 affects Opentext Appbuilder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4550?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-4550 have an EU (EUVD) identifier?: Yes. CVE-2023-4550 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-54405.
When was CVE-2023-4550 published?: CVE-2023-4550 was published on 2024-01-29 and last updated on 2026-06-17.

References

https://support.opentext.com/csm?id=ot_kb_search&kb_category=61648712db61781068cfd6c4e296197b

Affected products (1)

cpe:2.3:a:opentext:appbuilder:*:*:*:*:*:*:*:*

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