How severe is CVE-2023-43900?

CVE-2023-43900 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-43900 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43900?

CVE-2023-43900 affects Emsigner. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43900?

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

When was CVE-2023-43900 published?

CVE-2023-43900 was published on 2023-11-14 and last updated on 2026-06-17.

CVE-2023-43900

CVE-2023-43900 is a medium-severity vulnerability in Emsigner with a CVSS 3.x base score of 6.5. 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-639.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Emsigner
Published: 2023-11-14
Last modified: 2026-06-17

Description

Insecure Direct Object References (IDOR) in EMSigner v2.8.7 allow attackers to gain unauthorized access to application content and view sensitive data of other users via manipulation of the documentID and EncryptedDocumentId parameters.

Frequently asked questions

What is CVE-2023-43900?: Insecure Direct Object References (IDOR) in EMSigner v2.8.7 allow attackers to gain unauthorized access to application content and view sensitive data of other users via manipulation of the documentID and EncryptedDocumentId parameters.
How severe is CVE-2023-43900?: CVE-2023-43900 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-43900 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43900?: CVE-2023-43900 affects Emsigner. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43900?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-43900 published?: CVE-2023-43900 was published on 2023-11-14 and last updated on 2026-06-17.

References

https://secpro.llc/emsigner-cve-3/

Affected products (1)

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

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