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Related papers: WebInject: Prompt Injection Attack to Web Agents

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Multimodal agents built on large vision-language models (LVLMs) are increasingly deployed in open-world settings but remain highly vulnerable to prompt injection, especially through visual inputs. We introduce AgentTypo, a black-box…

Cryptography and Security · Computer Science 2025-10-07 Yanjie Li , Yiming Cao , Dong Wang , Bin Xiao

The rapid adoption of Large Language Model (LLM) agents and multi-agent systems enables remarkable capabilities in natural language processing and generation. However, these systems introduce security vulnerabilities that extend beyond…

Cryptography and Security · Computer Science 2026-05-12 Matteo Lupinacci , Francesco Aurelio Pironti , Francesco Blefari , Francesco Romeo , Luigi Arena , Angelo Furfaro

Autonomous AI agents powered by large language models (LLMs) with structured function-calling interfaces enable real-time data retrieval, computation, and multi-step orchestration. However, the rapid growth of plugins, connectors, and…

Cryptography and Security · Computer Science 2025-12-16 Mohamed Amine Ferrag , Norbert Tihanyi , Djallel Hamouda , Leandros Maglaras , Abderrahmane Lakas , Merouane Debbah

Customer-service LLM agents increasingly make policy-bound decisions (refunds, rebooking, billing disputes), but the same ``helpful'' interaction style can be exploited: a small fraction of users can induce unauthorized concessions,…

Cryptography and Security · Computer Science 2026-01-01 Jingyu Zhang

Web-browsing AI agents are increasingly deployed in enterprise settings under strict whitelists of approved domains, yet adversaries can still influence them by embedding hidden instructions in the HTML pages those domains serve. Existing…

Cryptography and Security · Computer Science 2026-05-13 Chia-Pei , Chen , Kentaroh Toyoda , Anita Lai , Alex Leung

Vision-language models (VLMs) seamlessly integrate visual and textual data to perform tasks such as image classification, caption generation, and visual question answering. However, adversarial images often struggle to deceive all prompts…

Multimedia · Computer Science 2024-06-21 Xikang Yang , Xuehai Tang , Fuqing Zhu , Jizhong Han , Songlin Hu

The proliferation of Large Language Models (LLMs) has introduced critical security challenges, where adversarial actors can manipulate input prompts to cause significant harm and circumvent safety alignments. These prompt-based attacks…

As the pre-trained language models (PLMs) continue to grow, so do the hardware and data requirements for fine-tuning PLMs. Therefore, the researchers have come up with a lighter method called \textit{Prompt Learning}. However, during the…

Computation and Language · Computer Science 2022-09-07 Yundi Shi , Piji Li , Changchun Yin , Zhaoyang Han , Lu Zhou , Zhe Liu

Advancements in large language models (LLMs) have unlocked remarkable capabilities. While deploying these models typically requires server-grade GPUs and cloud-based inference, the recent emergence of smaller open-source models and…

A multimodal large language model (MLLM) agent can receive instructions, capture images, retrieve histories from memory, and decide which tools to use. Nonetheless, red-teaming efforts have revealed that adversarial images/prompts can…

Computation and Language · Computer Science 2024-06-04 Xiangming Gu , Xiaosen Zheng , Tianyu Pang , Chao Du , Qian Liu , Ye Wang , Jing Jiang , Min Lin

In this paper, we introduce Auto-Intent, a method to adapt a pre-trained large language model (LLM) as an agent for a target domain without direct fine-tuning, where we empirically focus on web navigation tasks. Our approach first discovers…

Computation and Language · Computer Science 2024-10-31 Jaekyeom Kim , Dong-Ki Kim , Lajanugen Logeswaran , Sungryull Sohn , Honglak Lee

Large language models (LLMs) are increasingly being integrated into web browsers to create agentic browsing systems that execute actions on behalf of the user. Prior work considering the security of agentic browsers focuses exclusively on…

Cryptography and Security · Computer Science 2026-05-08 Sohom Datta , Alex Nahapetyan , William Enck , Alexandros Kapravelos

As LLM agents transition from short, static problem solving to executing complex, long-horizon tasks in dynamic environments, the ability to handle user interruptions, such as adding requirement or revising goals, during mid-task execution…

LLM-based agents are increasingly deployed for complex tasks requiring planning, tool use, and interaction with external services. Their reliance on untrusted external content exposes them to indirect prompt injection (IPI), in which…

Machine Learning · Computer Science 2026-05-26 Zixuan Chen , Jiaxiang Chen , Li Luo , Ke Xu , Xiaoxiang Huang , Tanfeng Sun , Xinghao Jiang

Multimodal Artificial Intelligence (AI) systems, particularly Vision-Language Models (VLMs), have become integral to critical applications ranging from autonomous decision-making to automated document processing. As these systems scale,…

Artificial Intelligence · Computer Science 2025-12-05 M Zeeshan , Saud Satti

Large language model (LLM) agents have demonstrated remarkable capabilities in complex reasoning and decision-making by leveraging external tools. However, this tool-centric paradigm introduces a previously underexplored attack surface,…

Artificial Intelligence · Computer Science 2026-01-08 Kanghua Mo , Li Hu , Yucheng Long , Zhihao Li

Large Vision-Language Models (LVLMs) are increasingly deployed in real-world intelligent systems for perception and reasoning in open physical environments. While LVLMs are known to be vulnerable to prompt injection attacks, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Chen Ling , Kai Hu , Hangcheng Liu , Xingshuo Han , Tianwei Zhang , Changhai Ou

Large language models are increasingly embedded into systems that interact with user data, retrieved web content, and external tools, creating a new attack surface: prompt injection, where malicious commands embedded in untrusted data…

Cryptography and Security · Computer Science 2026-05-05 Yuyang Gong , Zihao Wang , Jiawei Liu , XiaoFeng Wang

Vision-Language Models (VLMs) are increasingly deployed as autonomous agents to navigate mobile graphical user interfaces (GUIs). Operating in dynamic on-device ecosystems, which include notifications, pop-ups, and inter-app interactions,…

Cryptography and Security · Computer Science 2026-03-06 Chiyu Chen , Xinhao Song , Yunkai Chai , Yang Yao , Haodong Zhao , Lijun Li , Jie Li , Yan Teng , Gongshen Liu , Yingchun Wang

Recent advances in AI-generated content (AIGC) have significantly accelerated image editing techniques, driving increasing demand for diverse and fine-grained edits. Despite these advances, existing image editing methods still face…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Shuyu Wang , Weiqi Li , Qian Wang , Shijie Zhao , Jian Zhang