How severe is CVE-2022-40407?

CVE-2022-40407 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-40407 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40407?

CVE-2022-40407 affects Chamilo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40407?

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-2022-40407 published?

CVE-2022-40407 was published on 2022-09-29 and last updated on 2026-06-17.

CVE-2022-40407

CVE-2022-40407 is a high-severity vulnerability in Chamilo with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Chamilo
Published: 2022-09-29
Last modified: 2026-06-17

Description

A zip slip vulnerability in the file upload function of Chamilo v1.11 allows attackers to execute arbitrary code via a crafted Zip file.

Frequently asked questions

What is CVE-2022-40407?: A zip slip vulnerability in the file upload function of Chamilo v1.11 allows attackers to execute arbitrary code via a crafted Zip file.
How severe is CVE-2022-40407?: CVE-2022-40407 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-40407 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40407?: CVE-2022-40407 affects Chamilo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40407?: 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-2022-40407 published?: CVE-2022-40407 was published on 2022-09-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:chamilo:chamilo:1.11:*:*:*:*:*:*:*

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