diff --git a/dlls/mshtml/htmlelem.c b/dlls/mshtml/htmlelem.c
index ee0c6d5efa8..d2afdf6f89c 100644
--- a/dlls/mshtml/htmlelem.c
+++ b/dlls/mshtml/htmlelem.c
@@ -4036,36 +4036,75 @@ static HRESULT WINAPI HTMLElement6_hasAttributeNS(IHTMLElement6 *iface, VARIANT
 static HRESULT WINAPI HTMLElement6_getAttribute(IHTMLElement6 *iface, BSTR strAttributeName, VARIANT *AttributeValue)
 {
     HTMLElement *This = impl_from_IHTMLElement6(iface);
-    FIXME("(%p)->(%s %p)\n", This, debugstr_w(strAttributeName), AttributeValue);
-    return E_NOTIMPL;
+
+    WARN("(%p)->(%s %p) forwarding to IHTMLElement\n", This, debugstr_w(strAttributeName), AttributeValue);
+
+    return IHTMLElement_getAttribute(&This->IHTMLElement_iface, strAttributeName, 0, AttributeValue);
 }
 
 static HRESULT WINAPI HTMLElement6_setAttribute(IHTMLElement6 *iface, BSTR strAttributeName, VARIANT *pvarAttributeValue)
 {
     HTMLElement *This = impl_from_IHTMLElement6(iface);
-    FIXME("(%p)->(%s %p)\n", This, debugstr_w(strAttributeName), pvarAttributeValue);
-    return E_NOTIMPL;
+
+    WARN("(%p)->(%s %p) forwarding to IHTMLElement\n", This, debugstr_w(strAttributeName), pvarAttributeValue);
+
+    return IHTMLElement_setAttribute(&This->IHTMLElement_iface, strAttributeName, *pvarAttributeValue, 0);
 }
 
 static HRESULT WINAPI HTMLElement6_removeAttribute(IHTMLElement6 *iface, BSTR strAttributeName)
 {
     HTMLElement *This = impl_from_IHTMLElement6(iface);
-    FIXME("(%p)->(%s)\n", This, debugstr_w(strAttributeName));
-    return E_NOTIMPL;
+    VARIANT_BOOL success;
+
+    WARN("(%p)->(%s) forwarding to IHTMLElement\n", This, debugstr_w(strAttributeName));
+
+    return IHTMLElement_removeAttribute(&This->IHTMLElement_iface, strAttributeName, 0, &success);
 }
 
 static HRESULT WINAPI HTMLElement6_getAttributeNode(IHTMLElement6 *iface, BSTR strAttributeName, IHTMLDOMAttribute2 **ppretAttribute)
 {
     HTMLElement *This = impl_from_IHTMLElement6(iface);
-    FIXME("(%p)->(%s %p)\n", This, debugstr_w(strAttributeName), ppretAttribute);
-    return E_NOTIMPL;
+    IHTMLDOMAttribute *attr;
+    HRESULT hres;
+
+    WARN("(%p)->(%s %p) forwarding to IHTMLElement4\n", This, debugstr_w(strAttributeName), ppretAttribute);
+
+    hres = IHTMLElement4_getAttributeNode(&This->IHTMLElement4_iface, strAttributeName, &attr);
+    if(FAILED(hres))
+        return hres;
+
+    if(attr) {
+        hres = IHTMLDOMAttribute_QueryInterface(attr, &IID_IHTMLDOMAttribute2, (void**)ppretAttribute);
+        IHTMLDOMAttribute_Release(attr);
+    }else {
+        *ppretAttribute = NULL;
+    }
+    return hres;
 }
 
 static HRESULT WINAPI HTMLElement6_setAttributeNode(IHTMLElement6 *iface, IHTMLDOMAttribute2 *pattr, IHTMLDOMAttribute2 **ppretAttribute)
 {
     HTMLElement *This = impl_from_IHTMLElement6(iface);
-    FIXME("(%p)->(%p %p)\n", This, pattr, ppretAttribute);
-    return E_NOTIMPL;
+    IHTMLDOMAttribute *attr, *ret_attr;
+    HRESULT hres;
+
+    WARN("(%p)->(%p %p) forwarding to IHTMLElement4\n", This, pattr, ppretAttribute);
+
+    hres = IHTMLDOMAttribute2_QueryInterface(pattr, &IID_IHTMLDOMAttribute, (void**)&attr);
+    if(FAILED(hres))
+        return hres;
+
+    hres = IHTMLElement4_setAttributeNode(&This->IHTMLElement4_iface, attr, &ret_attr);
+    if(FAILED(hres))
+        return hres;
+
+    if(ret_attr) {
+        hres = IHTMLDOMAttribute_QueryInterface(ret_attr, &IID_IHTMLDOMAttribute2, (void**)ppretAttribute);
+        IHTMLDOMAttribute_Release(ret_attr);
+    }else {
+        *ppretAttribute = NULL;
+    }
+    return hres;
 }
 
 static HRESULT WINAPI HTMLElement6_removeAttributeNode(IHTMLElement6 *iface, IHTMLDOMAttribute2 *pattr, IHTMLDOMAttribute2 **ppretAttribute)