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fix(security): restrict DRAFT list to author — prevent cross-user draft leak

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GeschichteService.list() now applies hasAuthor(currentUser()) whenever
status == DRAFT, so BLOG_WRITE users cannot read other users' unpublished stories.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Marcel
2026-05-07 18:33:08 +02:00
committed by marcel
parent 5146aeb568
commit d76ee5fa31
3 changed files with 27 additions and 0 deletions
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2
backend/src/main/java/org/raddatz/familienarchiv/geschichte/GeschichteService.java
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@@ -77,8 +77,10 @@ public class GeschichteService {
GeschichteStatus effective = currentUserHasBlogWrite() ? status : GeschichteStatus.PUBLISHED;
int safeLimit = limit <= 0 ? DEFAULT_LIMIT : Math.min(limit, MAX_LIMIT);
UUID authorId = effective == GeschichteStatus.DRAFT ? currentUser().getId() : null;
Specification<Geschichte> spec = Specification.allOf(
GeschichteSpecifications.hasStatus(effective),
GeschichteSpecifications.hasAuthor(authorId),
GeschichteSpecifications.hasAllPersons(personIds),
GeschichteSpecifications.hasDocument(documentId),
GeschichteSpecifications.orderByDisplayDateDesc()

5
backend/src/main/java/org/raddatz/familienarchiv/geschichte/GeschichteSpecifications.java
View File

@@ -42,6 +42,11 @@ public final class GeschichteSpecifications {
};
}
public static Specification<Geschichte> hasAuthor(UUID authorId) {
return (root, query, cb) ->
authorId == null ? null : cb.equal(root.get("author").get("id"), authorId);
}
public static Specification<Geschichte> hasDocument(UUID documentId) {
return (root, query, cb) -> {
if (documentId == null) return null;

20
backend/src/test/java/org/raddatz/familienarchiv/geschichte/GeschichteServiceIntegrationTest.java
View File

@@ -159,6 +159,26 @@ class GeschichteServiceIntegrationTest {
.isEmpty();
}
@Test
void list_DRAFT_does_not_return_other_users_drafts() {
// writer creates a draft; writer2 (also BLOG_WRITE) should not see it
AppUser writer2 = appUserRepository.save(AppUser.builder()
.email("writer2-int@test")
.password("hash")
.build());
authenticateAs(writer, Permission.BLOG_WRITE);
GeschichteUpdateDTO dto = new GeschichteUpdateDTO();
dto.setTitle("Writer 1 draft");
dto.setBody("<p>private</p>");
geschichteService.create(dto);
authenticateAs(writer2, Permission.BLOG_WRITE);
List<Geschichte> result = geschichteService.list(GeschichteStatus.DRAFT, List.of(), null, 50);
assertThat(result).isEmpty();
}
private UUID publishedStoryWithPersons(String title, List<UUID> personIds) {
GeschichteUpdateDTO dto = new GeschichteUpdateDTO();
dto.setTitle(title);