The bbcode plugin in TinyMCE 3.5.8 does not properly enforce the TinyMCE security policy for the (1) encoding directive and (2) valid_elements attribute, which allows attackers to conduct cross-site scripting (XSS) attacks via application-specific vectors, as demonstrated using a textarea element.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Tinymce | Tinymce | 3.5.8 (including) | 3.5.8 (including) |
| Tinymce | Ubuntu | artful | * |
| Tinymce | Ubuntu | bionic | * |
| Tinymce | Ubuntu | cosmic | * |
| Tinymce | Ubuntu | disco | * |
| Tinymce | Ubuntu | eoan | * |
| Tinymce | Ubuntu | esm-apps/bionic | * |
| Tinymce | Ubuntu | esm-apps/focal | * |
| Tinymce | Ubuntu | esm-apps/xenial | * |
| Tinymce | Ubuntu | focal | * |
| Tinymce | Ubuntu | groovy | * |
| Tinymce | Ubuntu | lucid | * |
| Tinymce | Ubuntu | precise | * |
| Tinymce | Ubuntu | quantal | * |
| Tinymce | Ubuntu | saucy | * |
| Tinymce | Ubuntu | trusty | * |
| Tinymce | Ubuntu | upstream | * |
| Tinymce | Ubuntu | utopic | * |
| Tinymce | Ubuntu | vivid | * |
| Tinymce | Ubuntu | wily | * |
| Tinymce | Ubuntu | xenial | * |
| Tinymce | Ubuntu | yakkety | * |
| Tinymce | Ubuntu | zesty | * |
References
- http://osvdb.org/91130
- http://packetstormsecurity.com/files/120750/TinyMCE-3.5.8-Cross-Site-Scripting.html
- http://seclists.org/fulldisclosure/2013/Mar/114
- http://www.madirish.net/554
- http://www.securityfocus.com/bid/58424
- https://exchange.xforce.ibmcloud.com/vulnerabilities/82744
- http://osvdb.org/91130
- http://packetstormsecurity.com/files/120750/TinyMCE-3.5.8-Cross-Site-Scripting.html
- http://seclists.org/fulldisclosure/2013/Mar/114
- http://www.madirish.net/554
- http://www.securityfocus.com/bid/58424
- https://exchange.xforce.ibmcloud.com/vulnerabilities/82744