CWE-917

Improper Neutralization of Special Elements used in an Expression Language Statement

6 CVEs Avg CVSS 9.2 MITRE
3
CRITICAL
2
HIGH
0
MEDIUM
0
LOW
2
POC
3
KEV

Monthly

CVE-2026-22729 HIGH PATCH This Week

Spring AI's AbstractFilterExpressionConverter fails to properly escape user-controlled input in JSONPath queries, allowing authenticated attackers to inject arbitrary expressions and bypass access controls in vector store implementations. This impacts applications relying on the converter for multi-tenant isolation, role-based access, or metadata-based document filtering, enabling attackers to access unauthorized documents. No patch is currently available.

Java Authentication Bypass
NVD VulDB
CVSS 3.1
8.6
EPSS
0.0%
CVE-2025-11175 Monitor

Wikimedia Foundation Mediawiki - DiscussionTools Extension is affected by improper neutralization of special elements used in an expression language statement.

Mediawiki
NVD
EPSS
0.0%
CVE-2025-3322 CRITICAL Act Now

Critical remote code execution vulnerability in expression language processors that allows unauthenticated attackers to execute arbitrary code with maximum server privileges through improper input neutralization. This is a perfect-score CVSS 10.0 vulnerability affecting expression language engines across multiple frameworks; exploitation requires no authentication, user interaction, or special configuration, making it an immediate priority for any organization using affected technologies.

RCE Code Injection
NVD
CVSS 4.0
10.0
EPSS
0.8%
CVE-2021-45046 CRITICAL KEV PATCH THREAT Act Now

Apache Log4j2 contains an incomplete fix for Log4Shell (CVE-2021-44228) that allows attackers to bypass the initial patch through Thread Context Map (MDC) input data in non-default configurations, enabling RCE and DoS.

NVD
CVSS 3.1
9.0
EPSS
94.3%
CVE-2021-26084 CRITICAL POC KEV PATCH THREAT Act Now

Confluence Server and Data Center contain an OGNL injection vulnerability allowing unauthenticated remote code execution, triggering mass exploitation campaigns for cryptocurrency mining and ransomware in September 2021.

NVD Exploit-DB
CVSS 3.1
9.8
EPSS
94.4%
Threat
5.5
CVE-2010-1871 HIGH POC KEV THREAT Act Now

JBoss Seam 2 in Red Hat JBoss EAP 4.3.0 fails to sanitize JBoss Expression Language inputs, allowing remote attackers to achieve arbitrary code execution via crafted URL parameters when the Java Security Manager is misconfigured.

NVD Exploit-DB
CVSS 3.1
8.8
EPSS
93.7%
CVE-2026-22729
EPSS 0% CVSS 8.6
HIGH PATCH This Week

Spring AI's AbstractFilterExpressionConverter fails to properly escape user-controlled input in JSONPath queries, allowing authenticated attackers to inject arbitrary expressions and bypass access controls in vector store implementations. This impacts applications relying on the converter for multi-tenant isolation, role-based access, or metadata-based document filtering, enabling attackers to access unauthorized documents. No patch is currently available.

Java Authentication Bypass
NVD VulDB
CVE-2025-11175
EPSS 0%
Monitor

Wikimedia Foundation Mediawiki - DiscussionTools Extension is affected by improper neutralization of special elements used in an expression language statement.

Mediawiki
NVD
CVE-2025-3322
EPSS 1% CVSS 10.0
CRITICAL Act Now

Critical remote code execution vulnerability in expression language processors that allows unauthenticated attackers to execute arbitrary code with maximum server privileges through improper input neutralization. This is a perfect-score CVSS 10.0 vulnerability affecting expression language engines across multiple frameworks; exploitation requires no authentication, user interaction, or special configuration, making it an immediate priority for any organization using affected technologies.

RCE Code Injection
NVD
CVE-2021-45046
EPSS 94% CVSS 9.0
CRITICAL KEV PATCH THREAT Act Now

Apache Log4j2 contains an incomplete fix for Log4Shell (CVE-2021-44228) that allows attackers to bypass the initial patch through Thread Context Map (MDC) input data in non-default configurations, enabling RCE and DoS.

NVD
CVE-2021-26084
EPSS 94% 5.5 CVSS 9.8
CRITICAL POC KEV PATCH THREAT Act Now

Confluence Server and Data Center contain an OGNL injection vulnerability allowing unauthenticated remote code execution, triggering mass exploitation campaigns for cryptocurrency mining and ransomware in September 2021.

NVD Exploit-DB
CVE-2010-1871
EPSS 94% CVSS 8.8
HIGH POC KEV THREAT Act Now

JBoss Seam 2 in Red Hat JBoss EAP 4.3.0 fails to sanitize JBoss Expression Language inputs, allowing remote attackers to achieve arbitrary code execution via crafted URL parameters when the Java Security Manager is misconfigured.

NVD Exploit-DB

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