How severe is CVE-2023-34878?

CVE-2023-34878 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-2023-34878 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34878?

CVE-2023-34878 affects Ujcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34878?

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.

When was CVE-2023-34878 published?

CVE-2023-34878 was published on 2023-06-14 and last updated on 2026-06-17.

CVE-2023-34878

CVE-2023-34878 is a high-severity vulnerability in Ujcms 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-203.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Ujcms
Published: 2023-06-14
Last modified: 2026-06-17

Description

An issue was discovered in Ujcms v6.0.2 allows attackers to gain sensitive information via the dir parameter to /api/backend/core/web-file-html/download-zip.

Frequently asked questions

What is CVE-2023-34878?: An issue was discovered in Ujcms v6.0.2 allows attackers to gain sensitive information via the dir parameter to /api/backend/core/web-file-html/download-zip.
How severe is CVE-2023-34878?: CVE-2023-34878 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-2023-34878 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34878?: CVE-2023-34878 affects Ujcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34878?: 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.
When was CVE-2023-34878 published?: CVE-2023-34878 was published on 2023-06-14 and last updated on 2026-06-17.

References

https://github.com/ujcms/ujcms/issues/6

Affected products (1)

cpe:2.3:a:ujcms:ujcms:6.0.2:*:*:*:*:*:*:*

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