CVE-2026-47877— Spring Security Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XSS)
Quick assessment
Affected
Spring Spring Security
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Spring Security Authorization Server 的默认同意页面在渲染用户可控的值时，未进行 HTML 实体编码。 受影响版本： Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-47877
Vulnerability Information
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Vulnerability Title
Spring Security Authorization Server Default Consent Page is vulnerable to Cross-Site Scripting (XSS)
Source: CVE Program / CVE List V5
Vulnerability Description
Spring Security Authorization Server's default consent page renders user-controlled values without HTML entity encoding.
Spring Security 7.1.0
Spring Security 7.0.0 - 7.0.6
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Spring | Spring Security | 7.1.0 | - |
|
II. Public POCs for CVE-2026-47877
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-47877 (1)
Same Patch Batch · Spring · 2026-08-27 · 25 CVEs total
| CVE-2026-59270 | 9.4 CRITICAL | Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN o |
| CVE-2026-47879 | 7.7 HIGH | Spring Cloud Gateway SSRF and native file access with gRPC |
| CVE-2026-47849 | 7.1 HIGH | Spring Data REST allows mutation of identifier and version properties via JSON Patch |
| CVE-2026-59275 | 6.6 MEDIUM | Remote JVM termination: nested-array Java deserialization bypasses allowlist, triggers Sta |
| CVE-2026-59278 | 6.5 MEDIUM | In Spring for Apache Kafka, SSRF via DNS resolution triggered by untrusted java.net types |
| CVE-2026-59274 | 6.5 MEDIUM | Unbounded decompression in UnZipTransformer enables zip-bomb DoS |
| CVE-2026-47864 | 6.4 MEDIUM | Unsafe Java deserialization in SerializingHttpMessageConverter — remote code execution |
| CVE-2026-47881 | 5.9 MEDIUM | Denial of Service in Spring Batch FlatFileItemReader via Malformed Input File |
| CVE-2026-47875 | 5.6 MEDIUM | JobParameterDeserializer bypasses the trusted-type allowlist |
| CVE-2026-47878 | 5.6 MEDIUM | Unsafe Java deserialization in DefaultExecutionContextSerializer without class allowlist |
| CVE-2026-47880 | 5.4 MEDIUM | DefaultJmsHeaderMapper copies all JMS user properties into MessageHeaders without excludin |
| CVE-2026-59271 | 5.3 MEDIUM | Admin password disclosed in BrokerNotAliveException message |
| CVE-2026-47894 | 4.9 MEDIUM | Spring Cloud Config Server Native Environment Repository Exposure |
| CVE-2026-47892 | Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints | |
| CVE-2026-47889 | Spring Framework sameSite Attribute Dropped in JettyCoreServerHttpResponse | |
| CVE-2026-47891 | Spring Framework maxInMemorySize Bypassed in Jaxb2Decoder | |
| CVE-2026-47890 | Spring Framework Server Sent Event stream corruption while rendering fragments | |
| CVE-2026-47893 | Spring Framework Request Headers Included in Exception Reasons in HandshakeWebsocketServic | |
| CVE-2026-47883 | Spring Framework Open Redirect in UrlHandlerFilter | |
| CVE-2026-47884 | Spring Framework Improper Path Limitation in XsltView |
Showing top 20 of 25 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Spring Security
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CVE-2026-59270
Spring Security embedded UnboundID LDAP server exposes well- -
CVE-2026-47842
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WebAuthn User Verification Bypass via Session Serialization -
CVE-2026-41707
Spring Security DPoPProofJwtDecoderFactory vulnerable to DPo -
CVE-2026-47838
Unauthorized User Impersonation when Using X.509 Client Cert
Same vendor: Spring
-
CVE-2026-47893
Spring Framework Request Headers Included in Exception Reaso -
CVE-2026-47892
Spring Framework Header Predicate Bypass in WebFlux Function -
CVE-2026-47891
Spring Framework maxInMemorySize Bypassed in Jaxb2Decoder -
CVE-2026-47890
Spring Framework Server Sent Event stream corruption while r -
CVE-2026-47889
Spring Framework sameSite Attribute Dropped in JettyCoreServ
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