Quick answers
- Is CVE-2026-120466 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-120466 being exploited in the wild.
- How severe is CVE-2026-120466?
- Informational severity, published 12 November 2026.
- Which products and versions are affected?
- Acymailing.Com AcyMailing 1.0.0 - 11.1.1.
- Is there a fix for CVE-2026-120466?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-120466 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-120466?
- Check whether you run Acymailing.Com AcyMailing at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a missing authorization check on subscription modification endpoints that accept email addresses as input. An attacker can craft requests to unsubscribe arbitrary email addresses from one or all mailing lists without authentication or proof of ownership. The same endpoint leaks information about whether a given email is registered as a subscriber, enabling email enumeration attacks.
Affected products
- acymailing.com AcyMailing 1.0.0 - 11.1.1
Timeline
- 2026-11-12: disclosed