WordPress plugins hack forces password reset

WordPress has admitted it fell victim to a hack attack earlier this week, forcing the popular blogging site to reset user passwords as a precaution.

On its own blog page WordPress said members of its team noticed several popular plugins acting strangely. Following an investigation, these plugins were found to be compromised and using "cleverly disguised backdoors."

"We're still investigating what happened," said Automattic founder Matt Mullenweg, on behalf of the Wordpress team.

"We've decided to force-reset all passwords on WordPress.org. To use the forums, trac, or commit to a plugin or theme, you'll need to reset your password to a new one. (Same for bbPress.org and BuddyPress.org.)"

Mullenweg said WordPress determined that the offending plugins' behaviour had not originated from their original authors. The WordPress team has "rolled them back, pushed updates to the plugins, and shut down access to the plugin repository while we looked for anything else unsavory," he said.

AddThis, WPtouch, or W3 Total Cache were singled out as having been compromised and WordPress said anyone who uses these plugins should update to the latest clean version to be on the safe side.