3vulnerabilities
- Critical0 (0.0%)
- High1 (33.3%)
- Medium0 (0.0%)
- Moderate1 (33.3%)
- Low1 (33.3%)
ckeditor-ckeditor5-engine
Ecosystem: npm
Downloads:
- 0CriticalAffects 0 versions
- 1HighAffects 2 versions
- 0MediumAffects 0 versions
- 1ModerateAffects 1 version
- 1LowAffects 2 versions
Monthly breakdown
- Critical
- High
- Medium
- Moderate
- Low
- 2 vulnerabilities
- Critical: 0
- High: 1
- Medium: 0
- Moderate: 0
- Low: 1
- 1 vulnerabilities
- Critical: 0
- High: 0
- Medium: 0
- Moderate: 1
- Low: 0
Vulnerabilities (3)
Known vulnerabilities affecting ckeditor-ckeditor5-engine, based on data from OSV.
| ID | Severity | Summary | Affected versions | Published | Source |
|---|---|---|---|---|---|
| GHSA-rh54-vffm-5fvp | High | CKEditor: Cross-site scripting (XSS) in the engine package### Impact A Cross-Site Scripting (XSS) vulnerability has been discovered in the CKEditor 5 engine. This vulnerability is caused by a prototype pollution issue in the `es-toolkit` library used in the CKEditor 5 codebase. This vulnerability could lead to unauthorized JavaScript code execution when the editor processes incoming `style` attribute values. The underlying issue has been patched by the library maintainers, and the fix has been incorporated into CKEditor 5. ### Patches The problem has been recognized and patched. The fix will be available in version `48.5.1` (and above) and `47.7.4` |
| GitHub (opens in a new tab) | |
| GHSA-v6mg-96c6-gmpq | Low | CKEditor: Cross-site scripting (XSS) in the engine package### Impact A Cross-Site Scripting (XSS) vulnerability has been discovered in the CKEditor 5 engine. This vulnerability could be triggered by inserting specially crafted markup under a specific General HTML Support configuration that allows inserting objects, leading to unauthorized JavaScript code execution in a browser context isolated from the origin of the application embedding the editor. This vulnerability affects only installations where General HTML Support is enabled and configured to allow the affected HTML content. ### Patches The problem has been recognized and patched. The fix wi |
| GitHub (opens in a new tab) | |
| GHSA-3rh3-wfr4-76mj | Moderate | Regular expression Denial of Service in multiple packages### Impact A regular expression denial of service (ReDoS) vulnerability has been discovered in multiple CKEditor 5 packages. The vulnerability allowed to abuse particular regular expressions, which could cause a significant performance drop resulting in a browser tab freeze. It affects all users using the CKEditor 5 packages listed above at version <= 26.0.0. ### Patches The problem has been recognized and patched. The fix will be available in version 27.0.0. ### For more information Email us at security@cksource.com if you have any questions or comments about this advisory. ### Acknowledge |
| GitHub (opens in a new tab) |
- GHSA-rh54-vffm-5fvpHighCKEditor: Cross-site scripting (XSS) in the engine package
>= 45.0.0, < 47.7.4>= 48.0.0, < 48.5.1
### Impact A Cross-Site Scripting (XSS) vulnerability has been discovered in the CKEditor 5 engine. This vulnerability is caused by a prototype pollution issue in the `es-toolkit` library used in the CKEditor 5 codebase. This vulnerability could lead to unauthorized JavaScript code execution when the editor processes incoming `style` attribute values. The underlying issue has been patched by the library maintainers, and the fix has been incorporated into CKEditor 5. ### Patches The problem has been recognized and patched. The fix will be available in version `48.5.1` (and above) and `47.7.4`
CVE: CVE-2026-116688
- GHSA-v6mg-96c6-gmpqLowCKEditor: Cross-site scripting (XSS) in the engine package
>= 29.0.0, < 47.7.4>= 48.0.0, < 48.5.1
### Impact A Cross-Site Scripting (XSS) vulnerability has been discovered in the CKEditor 5 engine. This vulnerability could be triggered by inserting specially crafted markup under a specific General HTML Support configuration that allows inserting objects, leading to unauthorized JavaScript code execution in a browser context isolated from the origin of the application embedding the editor. This vulnerability affects only installations where General HTML Support is enabled and configured to allow the affected HTML content. ### Patches The problem has been recognized and patched. The fix wi
CVE: CVE-2026-116687
- GHSA-3rh3-wfr4-76mjModerateRegular expression Denial of Service in multiple packages
< 27.0.0
### Impact A regular expression denial of service (ReDoS) vulnerability has been discovered in multiple CKEditor 5 packages. The vulnerability allowed to abuse particular regular expressions, which could cause a significant performance drop resulting in a browser tab freeze. It affects all users using the CKEditor 5 packages listed above at version <= 26.0.0. ### Patches The problem has been recognized and patched. The fix will be available in version 27.0.0. ### For more information Email us at security@cksource.com if you have any questions or comments about this advisory. ### Acknowledge
CVE: CVE-2021-21391