Third-party spam detected on
https://example.com/Google has detected a significant portion of your site being abused with spam that violates Google's Webmaster Guidelines and adds little or no value to the web. The spammy content may appear in your forums, guestbooks, social media platforms, file uploader, free hosting services, or internal search pages.
This spammy content is possibly generated by site users or other third-parties, and it leverages your site to promote spam rather than the actual subject matter of your site.
Therefore, a manual spam action has been applied to appropriate URLs matching this pattern: example.com/forum/ubbthreads.php?ubb=changeprefs&what=style&value=4&curl=
The good news is that we generally believe your site is of sufficient quality that we didn't see a need to take manual action on the whole site. The current manual action will only affect those pages with spammy content. However, if your site has too much spammy content like this, that may affect our overall assessment of the site, result in a bad user experience, and affect your site’s reputation and ranking.
Following are some example URLs where we found pages that have been compromised. Please review them to gain a better sense of where these spammy content appears. Please note that the list is not exhaustive.
https://example.com/forum/ubbthreads.php?ubb=changeprefs&what=style&value=4&curl=https://spammyurl.tld