How severe is CVE-2023-6439?

CVE-2023-6439 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-6439 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6439?

CVE-2023-6439 affects Easycorp Zentao. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6439?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-6439 published?

CVE-2023-6439 was published on 2023-11-30 and last updated on 2026-06-17.

CVE-2023-6439

CVE-2023-6439 is a low-severity vulnerability in Easycorp Zentao with a CVSS 3.x base score of 3.5. 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-79.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Easycorp Zentao
Published: 2023-11-30
Last modified: 2026-06-17

Description

A vulnerability classified as problematic was found in ZenTao PMS 18.8. Affected by this vulnerability is an unknown functionality. The manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-246439.

Frequently asked questions

What is CVE-2023-6439?: A vulnerability classified as problematic was found in ZenTao PMS 18.8. Affected by this vulnerability is an unknown functionality. The manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-246439.
How severe is CVE-2023-6439?: CVE-2023-6439 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-6439 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6439?: CVE-2023-6439 affects Easycorp Zentao. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6439?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-6439 published?: CVE-2023-6439 was published on 2023-11-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:easycorp:zentao:18.8:*:*:*:*:*:*:*

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