CVE-2021-32809: medium-severity vulnerability in ckeditor4
Arbitrary HTML injection vulnerability in ckeditor
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.6epss 1.2%
ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Affected products
ckeditor · ckeditor4Related CVEs — ckeditor4
In the same product, most dangerous first.
CVE-2022-24729MEDIUMRegular expression Denial of Service in dialog pluginEPSS 2.5%CVE-2024-24816MEDIUMCross-site scripting (XSS) vulnerability in samples with enabled the preview featureEPSS 1.7%CVE-2021-41165HIGHHTML comments vulnerability allowing to execute JavaScript codeEPSS 1.6%CVE-2021-41164HIGHAdvanced Content Filter (ACF) vulnerability allowing to execute JavaScript code using malformed HTMLEPSS 1.3%CVE-2021-37695HIGHExecution of JavaScript code using malformed HTML in ckeditorEPSS 1.3%CVE-2022-24728MEDIUMCross-site Scripting in CKEditor4EPSS 1.2%
References
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7889-rm5j-hpgghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD/https://www.oracle.com/security-alerts/cpujan2022.htmlhttps://www.oracle.com/security-alerts/cpuoct2021.html