How severe is CVE-2018-20420?

CVE-2018-20420 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-20420 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20420?

CVE-2018-20420 affects Weberp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20420?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-20420 published?

CVE-2018-20420 was published on 2018-12-24 and last updated on 2026-06-17.

CVE-2018-20420

CVE-2018-20420 is a medium-severity vulnerability in Weberp with a CVSS 3.x base score of 4.9. 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-732.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v2: 5.5
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Weberp
Published: 2018-12-24
Last modified: 2026-06-17

Description

In webERP 4.15, Z_CreateCompanyTemplateFile.php has Incorrect Access Control, leading to the overwrite of an existing .sql file on the target web site by creating a template and then using ../ directory traversal in the TemplateName parameter.

Frequently asked questions

What is CVE-2018-20420?: In webERP 4.15, Z_CreateCompanyTemplateFile.php has Incorrect Access Control, leading to the overwrite of an existing .sql file on the target web site by creating a template and then using ../ directory traversal in the TemplateName parameter.
How severe is CVE-2018-20420?: CVE-2018-20420 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-20420 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20420?: CVE-2018-20420 affects Weberp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20420?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20420 published?: CVE-2018-20420 was published on 2018-12-24 and last updated on 2026-06-17.

References

https://github.com/eddietcc/CVEnotes/blob/master/webERP_4.15_Z_CreateCompanyTemplateFile/README.md

Affected products (1)

cpe:2.3:a:weberp:weberp:4.15:*:*:*:*:*:*:*

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