Vulnerability Details : CVE-2022-23494
tinymce is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in the alert and confirm dialogs when these dialogs were provided with malicious HTML content. This can occur in plugins that use the alert or confirm dialogs, such as in the `image` plugin, which presents these dialogs when certain errors occur. The vulnerability allowed arbitrary JavaScript execution when an alert presented in the TinyMCE UI for the current user. This vulnerability has been patched in TinyMCE 5.10.7 and TinyMCE 6.3.1 by ensuring HTML sanitization was still performed after unwrapping invalid elements. Users are advised to upgrade to either 5.10.7 or 6.3.1. Users unable to upgrade may ensure the the `images_upload_handler` returns a valid value as per the images_upload_handler documentation.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2022-23494
- cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*
- cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-23494
0.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 64 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-23494
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
GitHub, Inc. |
CWE ids for CVE-2022-23494
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: security-advisories@github.com (Primary)
References for CVE-2022-23494
-
https://github.com/tinymce/tinymce/commit/6923d85eba6de3e08ebc9c5a387b5abdaa21150e
Merge pull request from GHSA-gg8r-xjwq-4w92 · tinymce/tinymce@6923d85 · GitHubPatch;Third Party Advisory
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https://github.com/tinymce/tinymce/security/advisories/GHSA-gg8r-xjwq-4w92
Cross-site scripting vulnerability in TinyMCE alerts · Advisory · tinymce/tinymce · GitHubPatch;Third Party Advisory
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https://www.tiny.cloud/docs/tinymce/6/file-image-upload/#images_upload_handler
Image and file options | TinyMCE DocumentationVendor Advisory
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https://www.tiny.cloud/docs/release-notes/release-notes5107/#securityfixes
TinyMCE 5.10.7 | Docs | TinyMCERelease Notes;Vendor Advisory
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https://github.com/tinymce/tinymce/commit/8bb2d2646d4e1a718fce61a775fa22e9d317b32d
Merge pull request from GHSA-gg8r-xjwq-4w92 · tinymce/tinymce@8bb2d26 · GitHubPatch;Third Party Advisory
-
https://www.tiny.cloud/docs/tinymce/6/6.3-release-notes/#security-fixes
TinyMCE 6.3 | TinyMCE DocumentationRelease Notes;Vendor Advisory
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