The European Court of Human Rights ruled Tuesday against the paper having to pay the "success fee" Campbell agreed to pay her lawyers on top of other legal costs, arguing it didn't fit the offense.
In 2004, Campbell won her battle against the Daily Mirror, which printed photographs showing her leaving a drug counseling meeting. Britain's highest court ruled the paper breached Campbell's privacy with the photos and a story detailing her treatment.
The Strasbourg court said the "success fees" were more than 365,000 pounds as part of over 1,000,000 pounds in costs, and called them disproportionate.