Moderate severityNVD Advisory· Published Jan 26, 2021· Updated Aug 3, 2024
CVE-2021-26271
CVE-2021-26271
Description
It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
ckeditor4-devnpm | < 4.16 | 4.16 |
Affected products
2- CKEditor/CKEditordescription
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-jv4c-7jqq-m34xghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-26271ghsaADVISORY
- ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/mitrex_refsource_CONFIRM
- github.com/ckeditor/ckeditor4/blob/major/CHANGES.mdghsax_refsource_MISCWEB
- web.archive.org/web/20210128132707/https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/ghsaWEB
- www.oracle.com//security-alerts/cpujul2021.htmlghsax_refsource_MISCWEB
- www.oracle.com/security-alerts/cpuoct2021.htmlghsax_refsource_MISCWEB
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