How severe is CVE-2026-4947?

CVE-2026-4947 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2026-4947 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4947?

CVE-2026-4947 affects Foxit Esign. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-4947?

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.

Does CVE-2026-4947 have an EU (EUVD) identifier?

Yes. CVE-2026-4947 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17767.

When was CVE-2026-4947 published?

CVE-2026-4947 was published on 2026-04-01 and last updated on 2026-06-17.

CVE-2026-4947

CVE-2026-4947 is a high-severity vulnerability in Foxit Esign with a CVSS 3.x base score of 7.1. 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: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17767
Weakness: CWE-284
Affected product: Foxit Esign
Published: 2026-04-01
Last modified: 2026-06-17

Description

Addressed a potential insecure direct object reference (IDOR) vulnerability in the signing invitation acceptance process. Under certain conditions, this issue could have allowed an attacker to access or modify unauthorized resources by manipulating user-supplied object identifiers, potentially leading to forged signatures and compromising the integrity and authenticity of documents undergoing the signing process. The issue was caused by insufficient authorization validation on referenced resources during request processing.

Frequently asked questions

What is CVE-2026-4947?: Addressed a potential insecure direct object reference (IDOR) vulnerability in the signing invitation acceptance process. Under certain conditions, this issue could have allowed an attacker to access or modify unauthorized resources by manipulating user-supplied object identifiers, potentially leading to forged signatures and compromising the integrity and authenticity of documents undergoing the signing process. The issue was caused by insufficient authorization validation on referenced resources during request processing.
How severe is CVE-2026-4947?: CVE-2026-4947 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2026-4947 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4947?: CVE-2026-4947 affects Foxit Esign. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-4947?: 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.
Does CVE-2026-4947 have an EU (EUVD) identifier?: Yes. CVE-2026-4947 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17767.
When was CVE-2026-4947 published?: CVE-2026-4947 was published on 2026-04-01 and last updated on 2026-06-17.

References

https://www.foxit.com/support/security-bulletins.html

Affected products (1)

cpe:2.3:a:foxit:esign:*:*:*:*:*:*:*:*

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