diff --git a/api-backups.go b/api-backups.go
index ca7e28b..3a4c6f3 100644
--- a/api-backups.go
+++ b/api-backups.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"net/url"
 	"os"
 	"path/filepath"
 	"sort"
@@ -29,10 +30,15 @@ func (app *appContext) CreateBackup(gc *gin.Context) {
 // @Security Bearer
 // @tags Backups
 func (app *appContext) GetBackup(gc *gin.Context) {
-	fname := gc.Param("fname")
+	escapedFName := gc.Param("fname")
+	fname, err := url.QueryUnescape(escapedFName)
+	if err != nil {
+		respondBool(400, false, gc)
+		return
+	}
 	// Hopefully this is enough to ensure the path isn't malicious. Hidden behind bearer auth anyway so shouldn't matter too much I guess.
 	b := Backup{}
-	err := b.FromString(fname)
+	err = b.FromString(fname)
 	if err != nil || b.Date.IsZero() {
 		app.debug.Printf(lm.IgnoreInvalidFilename, fname, err)
 		respondBool(400, false, gc)
diff --git a/api-messages.go b/api-messages.go
index 12049e9..8f8e41c 100644
--- a/api-messages.go
+++ b/api-messages.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"net/url"
 	"time"
 
 	"github.com/gin-gonic/gin"
@@ -584,8 +585,9 @@ func (app *appContext) MatrixConnect(gc *gin.Context) {
 // @Security Bearer
 // @tags Other
 func (app *appContext) DiscordGetUsers(gc *gin.Context) {
-	name := gc.Param("username")
-	if name == "" {
+	escapedName := gc.Param("username")
+	name, err := url.QueryUnescape(escapedName)
+	if err != nil || name == "" {
 		respondBool(400, false, gc)
 		return
 	}
diff --git a/api-profiles.go b/api-profiles.go
index 44b88f7..907ec99 100644
--- a/api-profiles.go
+++ b/api-profiles.go
@@ -247,7 +247,13 @@ func (app *appContext) DeleteProfile(gc *gin.Context) {
 // @Security Bearer
 // @tags Profiles & Settings
 func (app *appContext) EnableReferralForProfile(gc *gin.Context) {
-	profileName := gc.Param("profile")
+	escapedProfileName := gc.Param("profile")
+	profileName, err := url.QueryUnescape(escapedProfileName)
+	if err != nil {
+		respond(400, "Invalid profile", gc)
+		app.err.Printf(lm.FailedGetProfile, profileName)
+		return
+	}
 	invCode := gc.Param("invite")
 	useExpiry := gc.Param("useExpiry") == "with-expiry"
 	inv, ok := app.storage.GetInvitesKey(invCode)
@@ -294,7 +300,13 @@ func (app *appContext) EnableReferralForProfile(gc *gin.Context) {
 // @Security Bearer
 // @tags Profiles & Settings
 func (app *appContext) DisableReferralForProfile(gc *gin.Context) {
-	profileName := gc.Param("profile")
+	escapedProfileName := gc.Param("profile")
+	profileName, err := url.QueryUnescape(escapedProfileName)
+	if err != nil {
+		respond(400, "Invalid profile", gc)
+		app.err.Printf(lm.FailedGetProfile, profileName)
+		return
+	}
 	profile, ok := app.storage.GetProfileKey(profileName)
 	if !ok {
 		respondBool(200, true, gc)
diff --git a/api-users.go b/api-users.go
index 140a59e..cf77781 100644
--- a/api-users.go
+++ b/api-users.go
@@ -625,7 +625,12 @@ func (app *appContext) EnableReferralForUsers(gc *gin.Context) {
 	gc.BindJSON(&req)
 	mode := gc.Param("mode")
 
-	source := gc.Param("source")
+	escapedSource := gc.Param("source")
+	source, err := url.QueryUnescape(escapedSource)
+	if err != nil {
+		respondBool(400, false, gc)
+		return
+	}
 	useExpiry := gc.Param("useExpiry") == "with-expiry"
 	baseInv := Invite{}
 	if mode == "profile" {
@@ -813,13 +818,19 @@ func (app *appContext) GetAnnounceTemplate(gc *gin.Context) {
 // @Summary Delete an announcement template.
 // @Produce json
 // @Success 200 {object} boolResponse
+// @Failure 400 {object} boolResponse
 // @Failure 500 {object} boolResponse
-// @Param name path string true "name of template"
+// @Param name path string true "name of template (url encoded if necessary)"
 // @Router /users/announce/template/{name} [delete]
 // @Security Bearer
 // @tags Users
 func (app *appContext) DeleteAnnounceTemplate(gc *gin.Context) {
-	name := gc.Param("name")
+	escapedName := gc.Param("name")
+	name, err := url.QueryUnescape(escapedName)
+	if err != nil {
+		respondBool(400, false, gc)
+		return
+	}
 	app.storage.DeleteAnnouncementsKey(name)
 	respondBool(200, false, gc)
 }