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CVE-2020-23811: xxl-job sensitive data exposure

7.5

CVSS Score
3.1

Basic Information

EPSS Score
0.54157%
Published
5/24/2022
Updated
7/18/2023
KEV Status
No
Technology
TechnologyJava

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Package NameEcosystemVulnerable VersionsFirst Patched Version
com.xuxueli:xxl-jobmaven<= 2.2.0

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability description explicitly references UserController.java as the source of exposure. In typical Spring MVC implementations, controller methods mapped to endpoints handle data retrieval. The CWE-200 classification indicates unauthorized data exposure, suggesting the controller's list() method (or equivalent) returns user records containing sensitive fields without authentication/authorization checks. The high confidence stems from the direct reference to UserController.java in the advisory and the nature of the exposed data matching common user entity attributes.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

xxl-jo* *.*.* *llows In*orm*tion *is*losur* o* us*rn*m*, mo**l, *n* p*sswor* vi* jo*/**min/*ontroll*r/Us*r*ontroll*r.j*v*.

Reasoning

T** vuln*r**ility **s*ription *xpli*itly r***r*n**s `Us*r*ontroll*r.j*v*` *s t** sour** o* *xposur*. In typi**l Sprin* MV* impl*m*nt*tions, *ontroll*r m*t*o*s m*pp** to *n*points **n*l* **t* r*tri*v*l. T** *W*-*** *l*ssi*i**tion in*i**t*s un*ut*oriz*