diff --git a/src/comment_upload_handler.mjs b/src/comment_upload_handler.mjs
index 600837e..89a171e 100644
--- a/src/comment_upload_handler.mjs
+++ b/src/comment_upload_handler.mjs
@@ -92,12 +92,19 @@ const parseMultipartFiles = (buffer, boundary) => {
 };
 
 /**
- * Build the allowed MIME list for comment uploads (image/*, video/*, audio/*).
- * Filters from cfg.mimes, excluding PDF, SWF, etc.
+ * Build the allowed MIME list for comment uploads.
+ * Respects cfg.websrv.fileupload_comments_mimes (e.g. ["image", "video", "audio"]) to
+ * allow a different set of categories than the global allowedMimes used for page uploads.
+ * Falls back to image/video/audio if the setting is absent.
  */
 const getAllowedCommentMimes = () => {
+    const allowedCats = Array.isArray(cfg.websrv.fileupload_comments_mimes)
+        ? cfg.websrv.fileupload_comments_mimes.map(c => c.toLowerCase())
+        : ['image', 'video', 'audio'];
     return Object.keys(cfg.mimes).filter(mime =>
-        mime.startsWith('image/') || mime.startsWith('video/') || mime.startsWith('audio/')
+        allowedCats.some(cat =>
+            cat.includes('/') ? mime === cat : mime.startsWith(`${cat}/`)
+        )
     );
 };
 
diff --git a/src/index.mjs b/src/index.mjs
index f27d913..1942af3 100644
--- a/src/index.mjs
+++ b/src/index.mjs
@@ -1147,6 +1147,7 @@ process.on('uncaughtException', err => {
     fileupload_comments_size: cfg.websrv.fileupload_comments_size || (10 * 1024 * 1024),
     fileupload_comments_max: cfg.websrv.fileupload_comments_max || 5,
     fileupload_comments_mode: cfg.websrv.fileupload_comments_mode || 'attachment',
+    fileupload_comments_mimes: Array.isArray(cfg.websrv.fileupload_comments_mimes) ? cfg.websrv.fileupload_comments_mimes : ['image', 'video', 'audio'],
 
     get fonts() {
       try {
diff --git a/src/upload_handler.mjs b/src/upload_handler.mjs
index 45daf93..8cf9448 100644
--- a/src/upload_handler.mjs
+++ b/src/upload_handler.mjs
@@ -157,7 +157,18 @@ export const handleUpload = async (req, res, self) => {
         }
 
         // Validate MIME type
-        const allowedMimes = Object.keys(cfg.mimes);
+        // cfg.allowedMimes entries can be category prefixes ("image", "video", "audio")
+        // OR exact MIME types ("application/pdf"). Entries with "/" are matched exactly.
+        const allowedCats = Array.isArray(cfg.allowedMimes)
+            ? cfg.allowedMimes.map(c => c.toLowerCase())
+            : null;
+        const allowedMimes = allowedCats
+            ? Object.keys(cfg.mimes).filter(m =>
+                allowedCats.some(cat =>
+                    cat.includes('/') ? m === cat : m.startsWith(`${cat}/`)
+                )
+              )
+            : Object.keys(cfg.mimes);
         let mime = file.contentType;
 
         if (!allowedMimes.includes(mime)) {
@@ -224,7 +235,7 @@ export const handleUpload = async (req, res, self) => {
         // Save temporarily to detect actual MIME
         await fs.writeFile(tmpPath, file.data);
 
-        // Verify MIME
+        // Verify actual MIME (second check after file-command detection)
         let actualMime = (await queue.spawn('file', ['--mime-type', '-b', tmpPath])).stdout.trim();
         if (!allowedMimes.includes(actualMime)) {
             await fs.unlink(tmpPath).catch(() => { });