WADBERT: Dual-channel Web Attack Detection Based on BERT Models
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866917232663068672 |
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| author | Luo, Kangqiang Xie, Yi Zhao, Shiqian Pan, Jing |
| author_facet | Luo, Kangqiang Xie, Yi Zhao, Shiqian Pan, Jing |
| contents | Web attack detection is the first line of defense for securing web applications, designed to preemptively identify malicious activities. Deep learning-based approaches are increasingly popular for their advantages: automatically learning complex patterns and extracting semantic features from HTTP requests to achieve superior detection performance. However, existing methods are less effective in embedding irregular HTTP requests, even failing to model unordered parameters and achieve attack traceability. In this paper, we propose an effective web attack detection model, named WADBERT. It achieves high detection accuracy while enabling the precise identification of malicious parameters. To this end, we first employ Hybrid Granularity Embedding (HGE) to generate fine-grained embeddings for URL and payload parameters. Then, URLBERT and SecBERT are respectively utilized to extract their semantic features. Further, parameter-level features (extracted by SecBERT) are fused through a multi-head attention mechanism, resulting in a comprehensive payload feature. Finally, by feeding the concatenated URL and payload features into a linear classifier, a final detection result is obtained. The experimental results on CSIC2010 and SR-BH2020 datasets validate the efficacy of WADBERT, which respectively achieves F1-scores of 99.63% and 99.50%, and significantly outperforms state-of-the-art methods. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_21893 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | WADBERT: Dual-channel Web Attack Detection Based on BERT Models Luo, Kangqiang Xie, Yi Zhao, Shiqian Pan, Jing Cryptography and Security Web attack detection is the first line of defense for securing web applications, designed to preemptively identify malicious activities. Deep learning-based approaches are increasingly popular for their advantages: automatically learning complex patterns and extracting semantic features from HTTP requests to achieve superior detection performance. However, existing methods are less effective in embedding irregular HTTP requests, even failing to model unordered parameters and achieve attack traceability. In this paper, we propose an effective web attack detection model, named WADBERT. It achieves high detection accuracy while enabling the precise identification of malicious parameters. To this end, we first employ Hybrid Granularity Embedding (HGE) to generate fine-grained embeddings for URL and payload parameters. Then, URLBERT and SecBERT are respectively utilized to extract their semantic features. Further, parameter-level features (extracted by SecBERT) are fused through a multi-head attention mechanism, resulting in a comprehensive payload feature. Finally, by feeding the concatenated URL and payload features into a linear classifier, a final detection result is obtained. The experimental results on CSIC2010 and SR-BH2020 datasets validate the efficacy of WADBERT, which respectively achieves F1-scores of 99.63% and 99.50%, and significantly outperforms state-of-the-art methods. |
| title | WADBERT: Dual-channel Web Attack Detection Based on BERT Models |
| topic | Cryptography and Security |
| url | https://arxiv.org/abs/2601.21893 |