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HuttenlocherTechnologies
LowCVSS 3.5WordPress plugins & themes

CVE-2017-20177

A vulnerability, which was classified as problematic, has been found in WangGuard Plugin 1.8.0 on WordPress.

A vulnerability, which was classified as problematic, has been found in WangGuard Plugin 1.8.0 on WordPress. Affected by this issue is the function wangguard_users_info of the file wangguard-user-info.php of the component WGG User List Handler. The manipulation of the argument userIP leads to cross site scripting. The attack may be launched remotely. The patch is identified as 88414951e30773c8d2ec13b99642688284bf3189. It is recommended to apply a patch to fix this issue. VDB-220214 is the identifier assigned to this vulnerability.

Description from the National Vulnerability Database, published by VulDB

What to do: Affects 1.8.0 to 1.8.0. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.

What it means for a small business

this software is a WordPress plugin. If your website uses it, the flaw is on your site whether or not anyone has noticed yet: attackers scan the whole internet for the plugins with published flaws, usually within days of a record like this one going public.

Most small-business sites run 15 to 40 plugins, and few owners know the list. You can check from WordPress itself (Plugins, then Installed Plugins), or let our free plugin check look it up by name.

How likely is an attack? The Exploit Prediction Scoring System, run by FIRST (the global association of security response teams), puts the odds of this one being exploited in the next 30 days at 0.64%, higher than 50% of CVEs. That’s low, but low isn’t zero, and the odds jump the day someone publishes an exploit. Scored October 29, 2026, updated daily.

Check your own setup

  • Website check: reads what your site runs from the outside (WordPress version, plugins it can see, old server software) and matches it against this database.
  • Server check: what your web server says about itself, and whether that version has known flaws.

Part of the Huttenlocher Technologies vulnerability database, refreshed twice a day from CISA and the NVD. The title, category and plain-language guidance are ours; check the linked record before acting on a detail. This is general guidance, not a review of your systems.

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