https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-30T09:12:28.732803+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/ghsa-q742-qvgc-gc2f GHSA-q742-qvgc-gc2f — TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, href, style attributes 2026-09-30T09:12:29.270084+00:00

Affected: npm: tinymce, NuGet: TinyMCE, Packagist: tinymce/tinymce

### Impact Stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation.

### Patches Patched by stripping unsafe data-mce-* attributes during parsing. Users should upgrade to the latest patched versions (5 LTS, 7.x, 8.x).

### Workarounds No official workaround available.

### Fix To avoid this vulnerability:

Upgrade to TinyMCE 8.5.1 or higher. Upgrade to TinyMCE 7.9.3 or higher. Upgrade to TinyMCE 5.11.1 LTS or higher for TinyMCE 5.x (only available as part of commercial [long-term support](https://www.tiny.cloud/long-term-support/) contract).

### Acknowledgements Tiny thanks [Tadi Kadango](https://github.com/mtrill47) ([website](https://tadiwakadango.com/)) and [Ivan Babenko](https://github.com/he1d3n) for their help identifying this vulnerability.