Quick answers
- Is CVE-2026-87300 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87300 being exploited in the wild.
- How severe is CVE-2026-87300?
- High severity, with a CVSS score of 8.7, published 20 October 2026.
- Which products and versions are affected?
- Oracle WebLogic Server Proxy Plug-in 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0.
- Is there a fix for CVE-2026-87300?
- 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-2026-87300 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-87300?
- Check whether you run Oracle WebLogic Server Proxy Plug-in 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
A difficult-to-exploit vulnerability in the WebLogic Server Proxy Plug-in allows unauthenticated attackers with network access via HTTP to gain unauthorized access to critical data, including creation, deletion, or modification of accessible information. The vulnerability has a scope change, meaning successful exploitation can impact additional products beyond the proxy plug-in itself. The attack requires no user interaction and no authentication.
Affected products
- Oracle WebLogic Server Proxy Plug-in 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0
Timeline
- 2026-10-20: disclosed