Resource file path traversal in WebImagesDownloadResourceManager

To reproduce: 1. Create a new page named foo any name can be used, but it must match the markup in step 3 2. In the editor, create an unmigrated-wiki-markup macro by typing "\a" don't copy/paste 3. Replace the "\a" in the macro with: code:none foo|foo|" code 4. Save the page. 5. Export to word...

Resource file path traversal in WebImagesDownloadResourceManager

To reproduce: 1. Create a new page named foo any name can be used, but it must match the markup in step 3 2. In the editor, create an unmigrated-wiki-markup macro by typing "\a" don't copy/paste 3. Replace the "\a" in the macro with: code:none foo|foo|" code 4. Save the page. 5. Export to word...