activity
20232026
most citedInstructTA: Instruction-Tuned Targeted Attack for Large Vision-Language Models

2 citations · 5 across the 7 of their papers we have counts for

collaborators

8 papers

cs.CR2026

From Shield to Target: Denial-of-Service Attacks on LLM-Based Agent Guardrails

Yuguang Zhou, Xunguang Wang, Pingchuan Ma +3

LLM-based guardrails have emerged as a highly effective defense against prompt injection and jailbreak attacks in autonomous agents. However, we reveal that the very reasoning and…

cs.AI2026

Beyond Content Safety: Real-Time Monitoring for Reasoning Vulnerabilities in Large Language Models

Xunguang Wang, Yuguang Zhou, Qingyue Wang +5

Large language models increasingly rely on explicit chain-of-thought reasoning to solve complex tasks, yet the safety of the reasoning process itself remains largely unaddressed. E…

cs.CR2025

Taxonomy, Evaluation and Exploitation of IPI-Centric LLM Agent Defense Frameworks

Zimo Ji, Xunguang Wang, Zongjie Li +6

Large Language Model (LLM)-based agents with function-calling capabilities are increasingly deployed, but remain vulnerable to Indirect Prompt Injection (IPI) attacks that hijack t…

cs.CR2025

SoK: Evaluating Jailbreak Guardrails for Large Language Models

Xunguang Wang, Zhenlan Ji, Wenxuan Wang +3

Large Language Models (LLMs) have achieved remarkable progress, but their deployment has exposed critical vulnerabilities, particularly to jailbreak attacks that circumvent safety…

cs.CL2025★ 1 cited

STShield: Single-Token Sentinel for Real-Time Jailbreak Detection in Large Language Models

Xunguang Wang, Wenxuan Wang, Zhenlan Ji +4

Large Language Models (LLMs) have become increasingly vulnerable to jailbreak attacks that circumvent their safety mechanisms. While existing defense methods either suffer from ada…

cs.CL2025★ 1 cited

GuidedBench: Measuring and Mitigating the Evaluation Discrepancies of In-the-wild LLM Jailbreak Methods

Ruixuan Huang, Xunguang Wang, Zongjie Li +2

Despite the growing interest in jailbreaks as an effective red-teaming tool for building safe and responsible large language models (LLMs), flawed evaluation system designs have le…

cs.CR2024★ 1 cited

SelfDefend: LLMs Can Defend Themselves against Jailbreaking in a Practical Manner

Xunguang Wang, Daoyuan Wu, Zhenlan Ji +7

Jailbreaking is an emerging adversarial attack that bypasses the safety alignment deployed in off-the-shelf large language models (LLMs) and has evolved into multiple categories: h…

cs.CV2023★ 2 cited

InstructTA: Instruction-Tuned Targeted Attack for Large Vision-Language Models

Xunguang Wang, Zhenlan Ji, Pingchuan Ma +3

Large vision-language models (LVLMs) have demonstrated their incredible capability in visual question answering. However, this rich visual interaction also makes LVLMs vulnerable t…