diff --git a/src/services/utils.ts b/src/services/utils.ts
index 926e24fb41..fc041f3121 100644
--- a/src/services/utils.ts
+++ b/src/services/utils.ts
@@ -365,7 +365,7 @@ export function processStringOrBuffer(data: string | Buffer | null) {
     }
 }
 
-export function safeExtractMessageAndStackFromError(err: unknown) {
+export function safeExtractMessageAndStackFromError(err: unknown): [errMessage: string, errStack: string | undefined] {
     return (err instanceof Error) ? [err.message, err.stack] as const : ["Unknown Error", undefined] as const;
 }
 
diff --git a/src/share/routes.spec.ts b/src/share/routes.spec.ts
index 3c86a3f2f1..425fcbaeda 100644
--- a/src/share/routes.spec.ts
+++ b/src/share/routes.spec.ts
@@ -2,6 +2,7 @@ import { beforeAll, beforeEach, describe, expect, it } from "vitest";
 import supertest from "supertest";
 import { initializeTranslations } from "../services/i18n.js";
 import type { Application, Request, Response, NextFunction } from "express";
+import { safeExtractMessageAndStackFromError } from "../services/utils.js";
 
 let app: Application;
 
@@ -11,8 +12,9 @@ describe("Share API test", () => {
     beforeAll(async () => {
         initializeTranslations();
         app = (await import("../app.js")).default;
-        app.use((err: any, req: Request, res: Response, next: NextFunction) => {
-            if (err.message.includes("Cannot set headers after they are sent to the client")) {
+        app.use((err: unknown, req: Request, res: Response, next: NextFunction) => {
+            const [errMessage] = safeExtractMessageAndStackFromError(err)
+            if (errMessage.includes("Cannot set headers after they are sent to the client")) {
                 cannotSetHeadersCount++;
             }
 
diff --git a/src/share/routes.ts b/src/share/routes.ts
index 9b6c2201d6..7164514045 100644
--- a/src/share/routes.ts
+++ b/src/share/routes.ts
@@ -15,7 +15,7 @@ import log from "../services/log.js";
 import type SNote from "./shaca/entities/snote.js";
 import type SBranch from "./shaca/entities/sbranch.js";
 import type SAttachment from "./shaca/entities/sattachment.js";
-import utils from "../services/utils.js";
+import utils, { safeExtractMessageAndStackFromError } from "../services/utils.js";
 import options from "../services/options.js";
 
 function getSharedSubTreeRoot(note: SNote): { note?: SNote; branch?: SBranch } {
@@ -115,7 +115,14 @@ function renderImageAttachment(image: SNote, res: Response, attachmentName: stri
         svgString = content;
     } else {
         // backwards compatibility, before attachments, the SVG was stored in the main note content as a separate key
-        const contentSvg = image.getJsonContentSafely()?.svg;
+        const possibleSvgContent = image.getJsonContentSafely();
+
+        const contentSvg = (typeof possibleSvgContent === "object"
+            && possibleSvgContent !== null
+            && "svg" in possibleSvgContent
+            && typeof possibleSvgContent.svg === "string")
+                ? possibleSvgContent.svg
+                : null;
 
         if (contentSvg) {
             svgString = contentSvg;
@@ -184,8 +191,9 @@ function register(router: Router) {
                         res.send(ejsResult);
                         useDefaultView = false; // Rendering went okay, don't use default view
                     }
-                } catch (e: any) {
-                    log.error(`Rendering user provided share template (${templateId}) threw exception ${e.message} with stacktrace: ${e.stack}`);
+                } catch (e: unknown) {
+                    const [errMessage, errStack] = safeExtractMessageAndStackFromError(e);
+                    log.error(`Rendering user provided share template (${templateId}) threw exception ${errMessage} with stacktrace: ${errStack}`);
                 }
             }
         }
@@ -195,7 +203,7 @@ function register(router: Router) {
         }
     }
 
-    router.get("/share/", (req, res, next) => {
+    router.get("/share/", (req, res) => {
         if (req.path.substr(-1) !== "/") {
             res.redirect("../share/");
             return;
@@ -211,7 +219,7 @@ function register(router: Router) {
         renderNote(shaca.shareRootNote, req, res);
     });
 
-    router.get("/share/:shareId", (req, res, next) => {
+    router.get("/share/:shareId", (req, res) => {
         shacaLoader.ensureLoad();
 
         const { shareId } = req.params;
@@ -221,7 +229,7 @@ function register(router: Router) {
         renderNote(note, req, res);
     });
 
-    router.get("/share/api/notes/:noteId", (req, res, next) => {
+    router.get("/share/api/notes/:noteId", (req, res) => {
         shacaLoader.ensureLoad();
         let note: SNote | boolean;
 
@@ -234,7 +242,7 @@ function register(router: Router) {
         res.json(note.getPojo());
     });
 
-    router.get("/share/api/notes/:noteId/download", (req, res, next) => {
+    router.get("/share/api/notes/:noteId/download", (req, res) => {
         shacaLoader.ensureLoad();
 
         let note: SNote | boolean;
@@ -256,7 +264,7 @@ function register(router: Router) {
     });
 
     // :filename is not used by trilium, but instead used for "save as" to assign a human-readable filename
-    router.get("/share/api/images/:noteId/:filename", (req, res, next) => {
+    router.get("/share/api/images/:noteId/:filename", (req, res) => {
         shacaLoader.ensureLoad();
 
         let image: SNote | boolean;
@@ -282,7 +290,7 @@ function register(router: Router) {
     });
 
     // :filename is not used by trilium, but instead used for "save as" to assign a human-readable filename
-    router.get("/share/api/attachments/:attachmentId/image/:filename", (req, res, next) => {
+    router.get("/share/api/attachments/:attachmentId/image/:filename", (req, res) => {
         shacaLoader.ensureLoad();
 
         let attachment: SAttachment | boolean;
@@ -300,7 +308,7 @@ function register(router: Router) {
         }
     });
 
-    router.get("/share/api/attachments/:attachmentId/download", (req, res, next) => {
+    router.get("/share/api/attachments/:attachmentId/download", (req, res) => {
         shacaLoader.ensureLoad();
 
         let attachment: SAttachment | boolean;
@@ -322,7 +330,7 @@ function register(router: Router) {
     });
 
     // used for PDF viewing
-    router.get("/share/api/notes/:noteId/view", (req, res, next) => {
+    router.get("/share/api/notes/:noteId/view", (req, res) => {
         shacaLoader.ensureLoad();
 
         let note: SNote | boolean;
@@ -340,11 +348,10 @@ function register(router: Router) {
     });
 
     // Used for searching, require noteId so we know the subTreeRoot
-    router.get("/share/api/notes", (req, res, next) => {
+    router.get("/share/api/notes", (req, res) => {
         shacaLoader.ensureLoad();
 
         const ancestorNoteId = req.query.ancestorNoteId ?? "_share";
-        let note;
 
         if (typeof ancestorNoteId !== "string") {
             res.status(400).json({ message: "'ancestorNoteId' parameter is mandatory." });
@@ -352,7 +359,7 @@ function register(router: Router) {
         }
 
         // This will automatically return if no ancestorNoteId is provided and there is no shareIndex
-        if (!(note = checkNoteAccess(ancestorNoteId, req, res))) {
+        if (!checkNoteAccess(ancestorNoteId, req, res)) {
             return;
         }
 
diff --git a/src/share/shaca/entities/sattachment.ts b/src/share/shaca/entities/sattachment.ts
index 612ba81f34..e8d1e50d99 100644
--- a/src/share/shaca/entities/sattachment.ts
+++ b/src/share/shaca/entities/sattachment.ts
@@ -47,7 +47,7 @@ class SAttachment extends AbstractShacaEntity {
             }
         }
 
-        let content = row.content;
+        const content = row.content;
 
         if (this.hasStringContent()) {
             return content === null ? "" : content.toString("utf-8");
diff --git a/src/share/shaca/entities/snote.ts b/src/share/shaca/entities/snote.ts
index b9e1a8b234..e4ba17d0c1 100644
--- a/src/share/shaca/entities/snote.ts
+++ b/src/share/shaca/entities/snote.ts
@@ -105,7 +105,7 @@ class SNote extends AbstractShacaEntity {
             }
         }
 
-        let content = row.content;
+        const content = row.content;
 
         if (this.hasStringContent()) {
             return content === null ? "" : content.toString("utf-8");
@@ -212,7 +212,7 @@ class SNote extends AbstractShacaEntity {
     /**
      * @throws Error in case of invalid JSON
      */
-    getJsonContent(): any | null {
+    getJsonContent(): unknown | null {
         const content = this.getContent();
 
         if (typeof content !== "string" || !content || !content.trim()) {
diff --git a/src/share/shaca/shaca_loader.ts b/src/share/shaca/shaca_loader.ts
index 474f5be37a..c0834cb8b1 100644
--- a/src/share/shaca/shaca_loader.ts
+++ b/src/share/shaca/shaca_loader.ts
@@ -93,7 +93,7 @@ function ensureLoad() {
 
 eventService.subscribe(
     [eventService.ENTITY_CREATED, eventService.ENTITY_CHANGED, eventService.ENTITY_DELETED, eventService.ENTITY_CHANGE_SYNCED, eventService.ENTITY_DELETE_SYNCED],
-    ({ entityName, entity }) => {
+    () => {
         shaca.reset();
     }
 );