CIVI-SA-2020-15: Persistent XSS in Contact Activity Tab

Publicat
2020-08-19 09:00
Written by

In certain screens, the Activity "Subject" field was not properly escaped to prevent cross site scripting.

Security Risk
Critical
Vulnerability
Cross Site Scripting
Affected Versions

CiviCRM version 5.28.0 and earlier

Fixed Versions

CiviCRM version 5.28.1 and 5.27.5 ESR

Publication Date
Solutions

Upgrade to the latest version of CiviCRM

Credits

Patrick Figel of Greenpeace CCE for reporting the issue
Seamus Lee of CiviCRM Core Team for fixing the issue

References

security/core#94