How severe is CVE-2023-39776?

CVE-2023-39776 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-39776 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39776?

CVE-2023-39776 affects Phpjabbers Ticket Support Script. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39776?

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

When was CVE-2023-39776 published?

CVE-2023-39776 was published on 2023-08-10 and last updated on 2026-06-17.

CVE-2023-39776

CVE-2023-39776 is a critical-severity vulnerability in Phpjabbers Ticket Support Script with a CVSS 3.x base score of 9.8. 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Phpjabbers Ticket Support Script
Published: 2023-08-10
Last modified: 2026-06-17

Description

A File Upload vulnerability in PHPJabbers Ticket Support Script v3.2 allows attackers to execute arbitrary code via uploading a crafted file.

Frequently asked questions

What is CVE-2023-39776?: A File Upload vulnerability in PHPJabbers Ticket Support Script v3.2 allows attackers to execute arbitrary code via uploading a crafted file.
How severe is CVE-2023-39776?: CVE-2023-39776 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-39776 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39776?: CVE-2023-39776 affects Phpjabbers Ticket Support Script. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39776?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-39776 published?: CVE-2023-39776 was published on 2023-08-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpjabbers:ticket_support_script:3.2:*:*:*:*:*:*:*

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