diff --git a/src/libxrpl/tx/transactors/Sponsor/SponsorshipTransfer.cpp b/src/libxrpl/tx/transactors/Sponsor/SponsorshipTransfer.cpp
index 3c63e3c42b..bf051a45ed 100644
--- a/src/libxrpl/tx/transactors/Sponsor/SponsorshipTransfer.cpp
+++ b/src/libxrpl/tx/transactors/Sponsor/SponsorshipTransfer.cpp
@@ -271,6 +271,11 @@ SponsorshipTransfer::preclaim(PreclaimContext const& ctx)
             // check object is sponsored
             if (!sle->isFieldPresent(sponsorField))
                 return tecNO_PERMISSION;
+
+            // only the sponsor or sponsee can end sponsorship
+            auto const sponsor = sle->getAccountID(sponsorField);
+            if (account != sponsor && account != sponseeAccountID)
+                return tecNO_PERMISSION;
         }
 
         // check new sponsor have sufficient balance
@@ -312,6 +317,11 @@ SponsorshipTransfer::preclaim(PreclaimContext const& ctx)
             // check account is sponsored
             if (!sponseeSle->isFieldPresent(sfSponsor))
                 return tecNO_PERMISSION;
+
+            // only the sponsor or sponsee can end sponsorship
+            auto const sponsor = sponseeSle->getAccountID(sfSponsor);
+            if (account != sponsor && account != sponseeAccountID)
+                return tecNO_PERMISSION;
         }
 
         // check account have sufficient balance
diff --git a/src/test/app/Sponsor_test.cpp b/src/test/app/Sponsor_test.cpp
index 3b63c7aefe..c875aa2752 100644
--- a/src/test/app/Sponsor_test.cpp
+++ b/src/test/app/Sponsor_test.cpp
@@ -7,6 +7,8 @@
 #include <xrpl/basics/strHex.h>
 #include <xrpl/protocol/Feature.h>
 
+#include "test/jtx/did.h"
+
 namespace xrpl {
 namespace test {
 
@@ -265,7 +267,7 @@ public:
         env.fund(XRP(1000000), alice, bob, gw, sp);
         env.close();
 
-        // Create a vault to get a pseudo acconst count
+        // Create a vault to get a pseudo account
         Vault const vault{env};
         auto [tx, keylet] = vault.create({.owner = alice, .asset = asset});
         env(tx);
@@ -733,6 +735,41 @@ public:
                 ter(temMALFORMED));
         }
 
+        {
+            // Invalid SponsorshipEnd permission (sponsor object/sponsor account)
+            Env env{*this, testable_amendments()};
+            Account const alice("alice");
+            Account const bob("bob");
+            Account const sponsor("sponsor");
+            env.fund(XRP(10000), alice, bob, sponsor);
+            env.close();
+
+            {
+                // sponsor object
+                env(did::set(alice),
+                    did::uri("uri"),
+                    sponsor::as(sponsor, spfSponsorReserve),
+                    sig(sfSponsorSignature, sponsor));
+                env.close();
+
+                auto const keylet = keylet::did(alice);
+                env(sponsor::transfer(bob, tfSponsorshipEnd, keylet.key),
+                    sponsor::sponseeAcc(alice),
+                    ter(tecNO_PERMISSION));
+            }
+            {
+                // sponsor object
+                env(sponsor::transfer(alice, tfSponsorshipCreate),
+                    sponsor::as(sponsor, spfSponsorReserve),
+                    sig(sfSponsorSignature, sponsor));
+                env.close();
+
+                env(sponsor::transfer(bob, tfSponsorshipEnd),
+                    sponsor::sponseeAcc(alice),
+                    ter(tecNO_PERMISSION));
+            }
+        }
+
         {
             // sponsor account
             Env env{*this, testable_amendments()};
@@ -3232,7 +3269,7 @@ public:
             env.close();
 
             // for free mptoken checks
-            // adjustAccountXRPBalance(env, sponsconst or, reserve(env, 2));
+            // adjustAccountXRPBalance(env, sponsor, reserve(env, 2));
             std::uint32_t const ticketSeq{env.seq(sponsor) + 1};
             env(ticket::create(sponsor, 2));
             env.close();