How severe is CVE-2021-42052?

CVE-2021-42052 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-2021-42052 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-42052?

CVE-2021-42052 affects Ipesa E-flow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-42052?

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-2021-42052 published?

CVE-2021-42052 was published on 2022-08-16 and last updated on 2026-06-17.

CVE-2021-42052

CVE-2021-42052 is a high-severity vulnerability in Ipesa E-flow 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Ipesa E-flow
Published: 2022-08-16
Last modified: 2026-06-17

Description

IPESA e-Flow 3.3.6 allows path traversal for reading any file within the web root directory via the lib/js/build/STEResource.res path and the R query parameter.

Frequently asked questions

What is CVE-2021-42052?: IPESA e-Flow 3.3.6 allows path traversal for reading any file within the web root directory via the lib/js/build/STEResource.res path and the R query parameter.
How severe is CVE-2021-42052?: CVE-2021-42052 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-2021-42052 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42052?: CVE-2021-42052 affects Ipesa E-flow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-42052?: 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-2021-42052 published?: CVE-2021-42052 was published on 2022-08-16 and last updated on 2026-06-17.

References

https://nxnjz.net/2022/08/cve-2021-42052-full-disclosure/

Affected products (1)

cpe:2.3:a:ipesa:e-flow:3.3.6:*:*:*:*:*:*:*

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