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https://issues.apache.org/jira/browse/WICKET-6289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15696296#comment-15696296
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ASF GitHub Bot commented on WICKET-6289:
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Github user martin-g commented on the issue:
https://github.com/apache/wicket/pull/199
Is it really needed for 1.5.x ?
This branch is for security fixes only.
> Autolinking adds onclick attribute to <img> tags
> ------------------------------------------------
>
> Key: WICKET-6289
> URL: https://issues.apache.org/jira/browse/WICKET-6289
> Project: Wicket
> Issue Type: Bug
> Affects Versions: 7.4.0, 8.0.0-M2, 6.25.0, 1.5.17
> Reporter: Carl-Eric Menzel
> Assignee: Carl-Eric Menzel
>
> When the autolinker can't find the target of a src or href attribute, it
> falls back to a default autocomponent, that supposedly leaves the tag
> unchanged. Quoting AutolinkResolver:
> {code}
> if (autoComponent == null)
> {
> // resolving didn't have the desired result or there was no delegate
> // found; fallback on the default resolving which is a simple
> // component that leaves the tag unchanged
> autoComponent = new AutolinkExternalLink(componentId,
> pathInfo.reference);
> }
> {code}
> ...except that AutolinkExternalLink is an ExternalLink which is an
> AbstractLink which does change the original tag. Namely, when applied to
> something that is not <a> it adds an onclick attribute. This leads to
> something like the following:
> {code}
> <img src="does-not-exist.png"
> onclick="window.location.href='does-not-exist.png';return false;"/>
> {code}
> ...which is clearly nonsensical. This can happen when the referenced image is
> not in the classpath - it could either be missing, or it could be in the
> webapp root somewhere, which can be the case for some legacy applications.
> (This is how I came across this.)
> A simple fix appears to be to use a plain WebMarkupContainer in place of this
> particular AutolinkExternalLink. All tests pass when I do that.
> This affects all versions from 1.5 on upward. I'll prepare a pull request.
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