Quick answers
- Is CVE-2026-91542 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91542 being exploited in the wild.
- How severe is CVE-2026-91542?
- High severity, with a CVSS score of 7.5, published 20 October 2026.
- Which products and versions are affected?
- Oracle WebCenter Sites 12.2.1.4.0, 14.1.2.0.0.
- Is there a fix for CVE-2026-91542?
- 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-2026-91542 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-91542?
- Check whether you run Oracle WebCenter Sites 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
An easily exploitable vulnerability in Oracle WebCenter Sites allows unauthenticated attackers with network access via HTTP to bypass authentication controls. The vulnerability impacts the WebCenter Sites component and results in unauthorized read access to critical data and all accessible WebCenter Sites data. No integrity or availability impacts are documented.
Affected products
- Oracle WebCenter Sites 12.2.1.4.0, 14.1.2.0.0
Timeline
- 2026-10-20: disclosed