peass-ng/PEASS-ng · error · XmlException

XML element name does not match object.

Error message

XML element name does not match object.

What it means

Structural-consistency guard in ReadObject during XML deserialization: the library compares the current XML element's name against the object's expected root element name (from XmlRootAttribute.ElementName or the type name). A mismatch means the XML stream does not describe this object type — the XML was written for a different schema/class — so deserialization is aborted with ArgumentException rather than silently mis-binding properties.

Source

Thrown at winPEAS/winPEASexe/winPEAS/TaskScheduler/XmlSerializationHelper.cs:491

        }

        public static void ReadObject([NotNull] XmlReader reader, [NotNull] object obj, PropertyConversionHandler handler = null)
        {
            if (obj == null)
                throw new ArgumentNullException(nameof(obj));

            reader.MoveToContent();

            if (obj is IXmlSerializable)
            {
                ((IXmlSerializable)obj).ReadXml(reader);
            }
            else
            {
                object oVal = null;
                string oName = GetAttributeValue(obj.GetType(), typeof(XmlRootAttribute), "ElementName", true, ref oVal) ? oVal.ToString() : obj.GetType().Name;
                if (reader.LocalName != oName)
                    throw new XmlException("XML element name does not match object.");

                if (!reader.IsEmptyElement)
                {
                    reader.ReadStartElement();
                    reader.MoveToContent();
                    ReadObjectProperties(reader, obj, handler);
                    reader.ReadEndElement();
                }
                else
                    reader.Skip();
            }
        }

        public static void ReadObjectFromXmlText([NotNull] string xml, [NotNull] object obj, PropertyConversionHandler handler = null)
        {
            using (System.IO.StringReader sr = new System.IO.StringReader(xml))
            {
                using (XmlReader reader = XmlReader.Create(sr))

View on GitHub (pinned to 53fb989abc)

Solutions

1. Ensure the XML element name matches the type's XmlRootAttribute ElementName, or annotate the class with the correct XmlRoot attribute
2. Deserialize into the same class type that produced the XML, or use ReadObjectFromXmlText with the matching type

When it happens

Trigger: Thrown at winPEAS/winPEASexe/winPEAS/TaskScheduler/XmlSerializationHelper.cs:491 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of peass-ng/PEASS-ng@53fb989abc (2026-09-02). Data as JSON: /api/errors/2f5e175e6be69f50. Report an issue: GitHub.