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CVE-2021-28170
May 26, 2021
In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were valid.
Affected Packages
org.glassfish:jakarta.el (JAVA):
Affected version(s) >=3.0.2 <3.0.4
Fix Suggestion:
Update to version 3.0.4
com.sun.el:el-ri (JAVA):
Affected version(s) =1.0 <3.0.4
Fix Suggestion:
Update to version 3.0.4
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
CVSS v2
Base Score:
5
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Weakness Type (CWE)
Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
Improper Input Validation
EPSS
Base Score:
0.11