CVE-2026-4947 Insecure Direct Object Reference (IDOR) Leading to Signature Forgery in Foxit eSign
Attackers can forge document signatures by manipulating object identifiers due to insufficient authorization checks in Foxit eSign.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4947?
CVE-2026-4947 is a high-severity missing authorization vulnerability in na1.foxitesign.foxit.com, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2026-4947?
It affects 1 product.
Products include Foxit Esign.
How do I fix CVE-2026-4947?
No fix has been published for CVE-2026-4947 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-4947 being exploited?
There is no known exploitation of CVE-2026-4947 in the wild and no public exploit code.
Other vulnerabilities in na1.foxitesign.foxit.com
Sources
Also known as GHSA-hw2m-7jfm-r9gq.