Kevin Backhouse discovered that CKEditor did not properly sanitize HTML content. An attacker could possibly use this issue to perform cross site scripting and obtain sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-24728)
It was discovered that CKEditor did not properly handle the creation of editor instances in the Iframe Dialog and Media Embed packages. An attacker could possibly use this issue to perform cross site scripting and obtain sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-28439)
It was discovered that CKEditor did not properly handle parsing HTML content. An attacker could possibly use this issue to perform cross site scripting and obtain sensitive information. (CVE-2024-24815, CVE-2024-24816)
It was discovered that CKEditor did not properly sanitize version notifications. An attacker could possibly use this issue to perform cross site scripting and obtain sensitive information. This issue only affected Ubuntu 24.04 LTS and Ubuntu 24.10. (CVE-2024-43411)