How severe is CVE-2023-43902?

CVE-2023-43902 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-43902 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43902?

CVE-2023-43902 affects Emsigner. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43902?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-43902 published?

CVE-2023-43902 was published on 2023-11-14 and last updated on 2026-06-17.

CVE-2023-43902

CVE-2023-43902 is a critical-severity vulnerability in Emsigner with a CVSS 3.x base score of 9.8. 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-276.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Emsigner
Published: 2023-11-14
Last modified: 2026-06-17

Description

Incorrect access control in the Forgot Your Password function of EMSigner v2.8.7 allows unauthenticated attackers to access accounts of all registered users, including those with administrator privileges via a crafted password reset token.

Frequently asked questions

What is CVE-2023-43902?: Incorrect access control in the Forgot Your Password function of EMSigner v2.8.7 allows unauthenticated attackers to access accounts of all registered users, including those with administrator privileges via a crafted password reset token.
How severe is CVE-2023-43902?: CVE-2023-43902 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-43902 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43902?: CVE-2023-43902 affects Emsigner. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43902?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-43902 published?: CVE-2023-43902 was published on 2023-11-14 and last updated on 2026-06-17.

References

https://secpro.llc/emsigner-cve-2/

Affected products (1)

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

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