From this webpage screenshot, we can extract the following key information about the vulnerability: 1. Code Block Math: - Typora now supports GitLab/GitHub-style math blocks, which can be inserted using the following syntax: math x = {-b \pm \sqrt{b^2-4ac} \over 2a} - Typora also supports inline math formulas such as and math block formulas. 2. EPub Export Improvements: - EPub export now includes an option called "Chapter Level in Outline," allowing users to specify the number of heading levels to include in the outline. - The default value is 3, meaning headings at levels 1, 2, and 3 will be listed in the outline. 3. Block Diagram: - The Mermaid library has been upgraded to version 10.9, introducing new block diagram features. 4. Other Improvements: - New files no longer require confirmation of the filename in the file tree. - Structured text code syntax highlighting has been added. - Whitespace characters within code blocks are now processed according to CommonMark rules. - Recent file path lengths on Windows/Linux have been shortened. - Custom alert text CSS styles are no longer preserved after exporting to PDF/HTML. - On macOS, the "Debug Mode" has been removed; users can now debug Typora elements via Safari’s "Develop" menu. - Typora languages have been updated for Polish, Traditional Chinese, Slovenian, Czech, and Norwegian. 5. Fixes: - Fixed an XSS vulnerability in Mermaid and math blocks. - Fixed an issue where videos would not go fullscreen when the fullscreen button was clicked. - Fixed a bug where triple-clicking a link inside a math block would close the window. - Fixed parsing issues with inline code containing whitespace characters. - Fixed an issue where images hosted on Cloudflare could not be loaded in Typora. - Fixed a problem where bookmarks in exported PDFs were not displayed in Adobe Reader. - Fixed an issue where certain remote images failed to load on macOS. - Fixed an issue where the “&” character in file paths was not displayed in the “Recent Files” menu on Windows/Linux. - Fixed an issue where using “$” in code language names caused incorrect string handling. - Other bug fixes. These details indicate that Typora version 1.9 includes multiple functional improvements and bug fixes, particularly in math blocks, EPub export, block diagrams, and language support.