How severe is CVE-2023-39846?

CVE-2023-39846 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-2023-39846 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39846?

CVE-2023-39846 affects Pantsel Konga. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39846?

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-2023-39846 published?

CVE-2023-39846 was published on 2023-08-16 and last updated on 2026-06-17.

CVE-2023-39846

CVE-2023-39846 is a critical-severity vulnerability in Pantsel Konga 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Pantsel Konga
Published: 2023-08-16
Last modified: 2026-06-17

Description

An issue in Konga v0.14.9 allows attackers to bypass authentication via a crafted JWT token.

Frequently asked questions

What is CVE-2023-39846?: An issue in Konga v0.14.9 allows attackers to bypass authentication via a crafted JWT token.
How severe is CVE-2023-39846?: CVE-2023-39846 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-2023-39846 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39846?: CVE-2023-39846 affects Pantsel Konga. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39846?: 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-2023-39846 published?: CVE-2023-39846 was published on 2023-08-16 and last updated on 2026-06-17.

References

https://abyssaler.github.io/post/konga%20Unauthorized%20access

Affected products (1)

cpe:2.3:a:pantsel:konga:0.14.9:*:*:*:*:*:*:*

More vulnerabilities in Pantsel Konga

CVE-2024-34243 — Medium (CVSS 5.4): Konga v0.14.9 is vulnerable to Cross Site Scripting (XSS) via the username parameter.

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