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4.3
CVSSv2

CVE-2021-26271

Published: 26/01/2021 Updated: 01/12/2021
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
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Vulnerability Summary

It was possible to execute a ReDoS-type attack inside CKEditor 4 prior to 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).

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Vendor Advisories

Debian CVElist Bug Report Logs: ckeditor3: CVE-2014-5191 CVE-2018-17960 CVE-2021-26271 CVE-2021-33829 CVE-2021-37695 CVE-2021-41165 CVE-2022-24728 CVE-2022-24729
Debian Bug report logs - #1015217 ckeditor3: CVE-2014-5191 CVE-2018-17960 CVE-2021-26271 CVE-2021-33829 CVE-2021-37695 CVE-2021-41165 CVE-2022-24728 CVE-2022-24729 Package: src:ckeditor3; Maintainer for src:ckeditor3 is Horde Maintainers <team+debian-horde-team@trackerdebianorg>; Reported by: Moritz Mühlenhoff <jmm@inut ...
Debian CVElist Bug Report Logs: ckeditor: CVE-2021-26271 CVE-2021-26272
Debian Bug report logs - #982587 ckeditor: CVE-2021-26271 CVE-2021-26272 Package: src:ckeditor; Maintainer for src:ckeditor is Debian Javascript Maintainers <pkg-javascript-devel@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Fri, 12 Feb 2021 07:45:01 UTC Severity: important Tag ...

References

CWE-829https://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-416https://ckeditor.com/blog/CKEditor-4.16-with-improved-image-pasting-High-Contrast-support-and-a-new-color-API/#security-comes-firsthttps://www.oracle.com//security-alerts/cpujul2021.htmlhttps://www.oracle.com/security-alerts/cpuoct2021.htmlhttps://nvd.nist.govhttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1015217
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2023-3675CVE-2024-3400CVE-2024-23557mass assignmentCVE-2023-1389local file inclusionCVE-2024-32596file uploadCVE-2024-32593
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