{"data":{"id":"0b18a4e3-2ba1-4a4e-9f23-83b501685e36","title":"Vast-SQLi: Constraint-Guided AST Mutation for WAF-Evasive SQL Injection Payload Generation","summary":"Vast-SQLi is a framework that generates SQL injection test payloads through structure-aware rewrites of customized abstract syntax trees, rather than token-level edits under fixed rules. Large language models are fine-tuned on transformation traces and then refined with reinforcement learning using constraint-guided objectives. On eight representative WAFs, the method improves bypass success by 27.43% over raw inputs and surpasses state-of-the-art methods.","solution":"N/A -- no mitigation discussed in source.","labels":["security","research"],"sourceUrl":"http://ieeexplore.ieee.org/document/11682767","publishedAt":"2026-09-07T13:17:58.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["other"],"issueType":"research","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":[],"affectedVendorsRaw":[],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"epssCheckedAt":null,"kevDateAdded":null,"advisoryAliases":null,"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":null,"disclosureDate":"2026-09-07T13:17:58.000Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["integrity"],"aiComponentTargeted":"model","llmSpecific":true,"classifierConfidence":0.8,"researchCategory":"peer_reviewed","atlasIds":null}}