CVE-2017-16881

Current Description

b3log Symphony (aka Sym) 2.2.0 does not properly address XSS in JSON objects, as demonstrated by a crafted userAvatarURL value to /settings/avatar, related to processor/AdminProcessor.java, processor/ArticleProcessor.java, processor/UserProcessor.java, service/ArticleQueryService.java, service/AvatarQueryService.java, and service/CommentQueryService.java.

Basic Data

PublishedNovember 18, 2017
Last ModifiedDecember 08, 2017
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-79
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityMEDIUM
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactNONE
CVSS 2 - Availability ImpactNONE
CVSS 2 - Base Score4.3
SeverityMEDIUM
Exploitability Score8.6
Impact Score2.9
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

CVSS 3 - Version3.0
CVSS 3 - Vector StringCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 3 - Attack VectorNETWORK
CVSS 3 - Attack ComplexityLOW
CVSS 3 - Privileges RequiredNONE
CVSS 3 - User InteractionREQUIRED
CVSS 3 - ScopeCHANGED
CVSS 3 - Confidentiality ImpactLOW
CVSS 3 - Integrity ImpactLOW
CVSS 3 - Availability ImpactNONE
CVSS 3 - Base Score6.1
CVSS 3 - Base SeverityMEDIUM
Exploitability Score2.8
Base SeverityMEDIUM

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationSymphony ProjectSymphony2.2.0*******

Vulnerable Software List

VendorProductVersions
Symphony Project Symphony 2.2.0

References

NameSourceURLTags
https://github.com/b3log/symphony/issues/504https://github.com/b3log/symphony/issues/504CONFIRMExploit Third Party Advisory