How severe is CVE-2023-34880?

CVE-2023-34880 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-2023-34880 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34880?

CVE-2023-34880 affects Cmseasy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34880?

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-2023-34880 published?

CVE-2023-34880 was published on 2023-06-15 and last updated on 2026-06-17.

CVE-2023-34880

CVE-2023-34880 is a critical-severity vulnerability in Cmseasy 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Cmseasy
Published: 2023-06-15
Last modified: 2026-06-17

Description

cmseasy v7.7.7.7 20230520 was discovered to contain a path traversal vulnerability via the add_action method at lib/admin/language_admin.php. This vulnerability allows attackers to execute arbitrary code and perform a local file inclusion.

Frequently asked questions

What is CVE-2023-34880?: cmseasy v7.7.7.7 20230520 was discovered to contain a path traversal vulnerability via the add_action method at lib/admin/language_admin.php. This vulnerability allows attackers to execute arbitrary code and perform a local file inclusion.
How severe is CVE-2023-34880?: CVE-2023-34880 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-2023-34880 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34880?: CVE-2023-34880 affects Cmseasy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34880?: 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-2023-34880 published?: CVE-2023-34880 was published on 2023-06-15 and last updated on 2026-06-17.

References

https://blog.pumpk1n.com/2023/06/06/cmseasy-v7-7-7-7-20230520-path-traversal/

Affected products (1)

cpe:2.3:a:cmseasy:cmseasy:7.7.7.7:20230520:*:*:*:*:*:*

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