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WordPress warns of smart worm attack on blogs

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Blogging software firm WordPress has warned of a worm spreading among users by exploiting an old security vulnerability.

The company said that the worm has been identified only because of flaws in its design.

"This particular worm, like many before it, is clever: it registers a user, uses a security bug (fixed earlier in the year) to allow evaluated code to be executed through the permalink structure, makes itself an admin, then uses JavaScript to hide itself when you look at the user's page," warned the company in a blog post.

"It then attempts to clean up after itself, then goes quiet so you never notice while it inserts hidden spam and malware into your old posts."

However, the worm's design means that it breaks links on a user's page, alerting them to the fact that something is wrong.

The current WordPress 2.8.4 is immune to the worm, and users are being urged to upgrade as soon as possible.
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Home>World news>WordPress warns of smart worm attack on blogs
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