CVE-2023-40599: Synck Graphica Mailform Pro Cgi

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

Regular expression Denial-of-Service (ReDoS) exists in multiple add-ons for Mailform Pro CGI 4.3.1.3 and earlier, which allows a remote unauthenticated attacker to cause a denial-of-service condition. Affected add-ons are as follows: call/call.js, prefcodeadv/search.cgi, estimate/estimate.js, search/search.js, suggest/suggest.js, and coupon/coupon.js.

Affected products

• Synck Graphica Mailform Pro Cgi: up to and including 4.3.1.3

Published 2023-08-25. Last modified 2026-06-17.