CVE-2026-73502 kin-openapi openapi3filter: unauthenticated nil-pointer panic when validating a request against a `content` parameter whose media type has no schema

kin-openapi is a Go project for handling OpenAPI files. From 0.2.0 until 0.144.0, openapi3filter.ValidateRequest can encounter a NULL-pointer-dereference denial of service when an operation declares a content parameter whose application/json media type has no schema. In...

CVE-2026-73502 kin-openapi openapi3filter: unauthenticated nil-pointer panic when validating a request against a `content` parameter whose media type has no schema

kin-openapi is a Go project for handling OpenAPI files. From 0.2.0 until 0.144.0, openapi3filter.ValidateRequest can encounter a NULL-pointer-dereference denial of service when an operation declares a content parameter whose application/json media type has no schema. In...

CVE-2026-73502

In openapi3filter/req_resp_decoder.go (~line 197), defaultContentParameterDecoder dereferences mt.Schema.Value without a nil check, panicking on any spec using a schema-less content parameter. Unauthenticated clients trigger this with one request, causing per-request aborts or full process crashe...

GO-2026-6112 Nil-pointer panic on content parameter without schema in github.com/getkin/kin-openapi

Nil-pointer panic on content parameter without schema in github.com/getkin/kin-openapi...

GHSA-JPCW-4WR7-C3VQ kin-openapi openapi3filter: unauthenticated nil-pointer panic when validating a request against a `content` parameter whose media type has no schema

| Field | Value | |---|---| | Ecosystem | Go | | Package | github.com/getkin/kin-openapi | | Affected versions | = 0.143.0 introduced in v0.2.0, PR 90, 2019-05-07; reproduced on HEAD 30e2923 | | Patched versions | 0.144.0 | --- Summary openapi3filter.ValidateRequest contains a...

kin-openapi openapi3filter: unauthenticated nil-pointer panic when validating a request against a `content` parameter whose media type has no schema

| Field | Value | |---|---| | Ecosystem | Go | | Package | github.com/getkin/kin-openapi | | Affected versions | = 0.143.0 introduced in v0.2.0, PR 90, 2019-05-07; reproduced on HEAD 30e2923 | | Patched versions | 0.144.0 | --- Summary openapi3filter.ValidateRequest contains a...

PT-2026-76594

Name of the Vulnerable Software and Affected Versions kin-openapi versions 0.2.0 through 0.143.0 Description An unauthenticated remote denial of service exists when the openapi3filter.ValidateRequest function processes an operation that declares a content parameter where the application/json medi...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the content parameter of the /templates endpoint. An attacker can execute arbitrary JavaScript code in the browsers of users who view the affected template by injecting malicious scripts. Details Cross-site...

CVE-2026-26483

Mettle SendPortal 3.0.1 and earlier contains a stored cross-site scripting XSS vulnerability in the template management functionality. The application fails to properly sanitize user-supplied input in the content parameter of the /templates endpoint, allowing an attacker to persistently inject...

CVE-2026-26483

Mettle SendPortal 3.0.1 and earlier contains a stored cross-site scripting XSS vulnerability in the template management functionality. The application fails to properly sanitize user-supplied input in the content parameter of the /templates endpoint, allowing an attacker to persistently inject...

PT-2026-61662

Name of the Vulnerable Software and Affected Versions Mettle SendPortal versions prior to 3.0.2 Description A stored cross-site scripting XSS issue exists in the template management functionality. The application does not properly sanitize user-supplied input in the content parameter of the...

CVE-2026-9626

The CVE-2026-9626 entry concerns the WordPress JSON API User plugin (

CVE-2026-9626 JSON API User <= 4.1.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'content' Parameter

The JSON API User plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter of the postcomment API endpoint in versions up to, and including, 4.1.0 This is due to insufficient input sanitization in the postcomment function, which passes the attacker-controlled...

PT-2026-48171

A markdown based cross-site scripting XSS vulnerability in the /system/notice/create endpoint of FastapiAdmin v2.2.0 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the notice content parameter...

CVE-2026-36763

A stored cross-site scripting XSS vulnerability in the /api/blade-desk/notice/submit endpoint of SpringBlade v4.8.0 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted input into the content parameter...

CVE-2026-36761

A stored cross-site scripting XSS vulnerability in the /msg/msgInner/save endpoint of JeeSite v5.15.1 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted input into the msgContent parameter...

EUVD-2020-31223

Kuicms Php EE 2.0 contains a persistent cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted content through the bbs reply endpoint. Attackers can send POST requests to /web/?c=bbs&a=reply with HTML and JavaScript payloads in t...

CVE-2020-37222

Kuicms Php EE 2.0 contains a persistent cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted content through the bbs reply endpoint. Attackers can send POST requests to /web/?c=bbs&a=reply with HTML and JavaScript payloads in t...

CVE-2020-37222 Kuicms Php EE 2.0 Persistent Cross-Site Scripting via bbs reply

Kuicms Php EE 2.0 contains a persistent cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted content through the bbs reply endpoint. Attackers can send POST requests to /web/?c=bbs&a=reply with HTML and JavaScript payloads in t...

CVE-2026-36458

ChestnutCMS v1.5.10 has a SQL injection vulnerability. The content parameter of the cmscontent tag can be manipulated in the admin backend and injected into a SQL query when the template is rendered...