How severe is CVE-2023-4551?

CVE-2023-4551 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-4551 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4551?

CVE-2023-4551 affects Opentext Appbuilder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4551?

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-2023-4551 have an EU (EUVD) identifier?

Yes. CVE-2023-4551 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-54406.

When was CVE-2023-4551 published?

CVE-2023-4551 was published on 2024-01-29 and last updated on 2026-06-17.

CVE-2023-4551

CVE-2023-4551 is a high-severity vulnerability in Opentext Appbuilder with a CVSS 3.x base score of 7.2. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-54406
Weakness: CWE-20
Affected product: Opentext Appbuilder
Published: 2024-01-29
Last modified: 2026-06-17

Description

Improper Input Validation vulnerability in OpenText AppBuilder on Windows, Linux allows OS Command Injection. The AppBuilder's Scheduler functionality that facilitates creation of scheduled tasks is vulnerable to command injection. This allows authenticated users to inject arbitrary operating system commands into the executing process. This issue affects AppBuilder: from 21.2 before 23.2.

Frequently asked questions

What is CVE-2023-4551?: Improper Input Validation vulnerability in OpenText AppBuilder on Windows, Linux allows OS Command Injection. The AppBuilder's Scheduler functionality that facilitates creation of scheduled tasks is vulnerable to command injection. This allows authenticated users to inject arbitrary operating system commands into the executing process. This issue affects AppBuilder: from 21.2 before 23.2.
How severe is CVE-2023-4551?: CVE-2023-4551 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-4551 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4551?: CVE-2023-4551 affects Opentext Appbuilder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4551?: 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-2023-4551 have an EU (EUVD) identifier?: Yes. CVE-2023-4551 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-54406.
When was CVE-2023-4551 published?: CVE-2023-4551 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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