Alfresco: "Access denied" when editing a document meta-data - alfresco

Question

Having a document with a custom aspect and custom model, the manager of the site and the owner of the document (uploaded) cannot edit the custom inputs (inherited from the custom aspect) resulting in this error:
04050251 Access Denied. You do not have the appropriate permissions to perform this operation.
How to let users edit the custom meta-data on the documents having a custom aspect ?
Stacktrace:
2014-05-06 17:01:06,357 ERROR [extensions.webscripts.AbstractRuntime] [http-apr-80-exec-9] Exception from executeScript - redirecting to status template error: 04060330 Access Denied. You do not have the appropriate permissions to perform this operation.
org.alfresco.repo.security.permissions.AccessDeniedException: 04060330 Access Denied. You do not have the appropriate permissions to perform this operation.
at org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:50)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:161)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.model.filefolder.FilenameFilteringInterceptor.invoke(FilenameFilteringInterceptor.java:296)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy63.move(Unknown Source)
at org.alfresco.repo.action.executer.MoveActionExecuter.executeImpl(MoveActionExecuter.java:86)
at org.alfresco.repo.action.executer.ActionExecuterAbstractBase.execute(ActionExecuterAbstractBase.java:258)
at org.alfresco.repo.action.ActionServiceImpl.directActionExecution(ActionServiceImpl.java:838)
at org.alfresco.repo.action.executer.CompositeActionExecuter.executeImpl(CompositeActionExecuter.java:66)
at org.alfresco.repo.action.executer.ActionExecuterAbstractBase.execute(ActionExecuterAbstractBase.java:258)
at org.alfresco.repo.action.ActionServiceImpl.directActionExecution(ActionServiceImpl.java:838)
at org.alfresco.repo.action.ActionServiceImpl.executeActionImpl(ActionServiceImpl.java:738)
at org.alfresco.repo.action.ActionServiceImpl.executeAction(ActionServiceImpl.java:572)
at sun.reflect.GeneratedMethodAccessor904.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.alfresco.repo.security.permissions.impl.AlwaysProceedMethodInterceptor.invoke(AlwaysProceedMethodInterceptor.java:34)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:46)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:161)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy44.executeAction(Unknown Source)
at org.alfresco.repo.rule.RuleServiceImpl.executeAction(RuleServiceImpl.java:1250)
at org.alfresco.repo.rule.RuleServiceImpl.executeRule(RuleServiceImpl.java:1244)
at org.alfresco.repo.rule.RuleServiceImpl.executePendingRule(RuleServiceImpl.java:1190)
at org.alfresco.repo.rule.RuleServiceImpl.executePendingRulesImpl(RuleServiceImpl.java:1119)
at org.alfresco.repo.rule.RuleServiceImpl.executePendingRules(RuleServiceImpl.java:1092)
at org.alfresco.repo.rule.RuleTransactionListener.beforeCommit(RuleTransactionListener.java:57)
at org.alfresco.repo.transaction.AlfrescoTransactionSupport$TransactionSynchronizationImpl.doBeforeCommit(AlfrescoTransactionSupport.java:737)
at org.alfresco.repo.transaction.AlfrescoTransactionSupport$TransactionSynchronizationImpl.doBeforeCommit(AlfrescoTransactionSupport.java:717)
at org.alfresco.repo.transaction.AlfrescoTransactionSupport$TransactionSynchronizationImpl.beforeCommit(AlfrescoTransactionSupport.java:683)
at org.springframework.transaction.support.TransactionSynchronizationUtils.triggerBeforeCommit(TransactionSynchronizationUtils.java:95)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.triggerBeforeCommit (AbstractPlatformTransactionManager.java:927)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:737)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723)
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning (TransactionAspectSupport.java:393)
at org.alfresco.util.transaction.SpringAwareUserTransaction.commit(SpringAwareUserTransaction.java:472)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:474)
at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:491)
at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:529)
at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:341)
at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:378)
at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:209)
at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:132)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:61)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.AprEndpoint$SocketWithOptionsProcessor.run(AprEndpoint.java:1810)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
Caused by: net.sf.acegisecurity.AccessDeniedException: Access is denied.
at net.sf.acegisecurity.vote.AffirmativeBased.decide(AffirmativeBased.java:86)
at net.sf.acegisecurity.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:398)
at net.sf.acegisecurity.intercept.method.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:77)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:46)
... 75 more