How severe is CVE-2023-43901?

CVE-2023-43901 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-43901 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43901?

CVE-2023-43901 affects Emsigner. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43901?

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

When was CVE-2023-43901 published?

CVE-2023-43901 was published on 2023-11-14 and last updated on 2026-06-17.

CVE-2023-43901

CVE-2023-43901 is a medium-severity vulnerability in Emsigner with a CVSS 3.x base score of 5.9. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Emsigner
Published: 2023-11-14
Last modified: 2026-06-17

Description

Incorrect access control in the AdHoc User creation form of EMSigner v2.8.7 allows unauthenticated attackers to arbitrarily modify usernames and privileges by using the email address of a registered user.

Frequently asked questions

What is CVE-2023-43901?: Incorrect access control in the AdHoc User creation form of EMSigner v2.8.7 allows unauthenticated attackers to arbitrarily modify usernames and privileges by using the email address of a registered user.
How severe is CVE-2023-43901?: CVE-2023-43901 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-43901 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43901?: CVE-2023-43901 affects Emsigner. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43901?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-43901 published?: CVE-2023-43901 was published on 2023-11-14 and last updated on 2026-06-17.

References

https://secpro.llc/EMSigner-CVE-1/

Affected products (1)

cpe:2.3:a:emsigner:emsigner:2.8.7:*:*:*:*:*:*:*

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