Plugins · responsive-checker-real-time · data as of 2026-11-04
Is Responsive Check safe? Known vulnerabilities and latest version
- Status
- Closed 2026-05-19
- Known issues on record
- 1
- Unpatched in latest
- 0
What to do
- Replace it. A closed plugin gets no updates through WordPress, so any hole found from now on stays open.
- Deactivate and delete it once you have a replacement (Plugins → Deactivate → Delete). Deleting removes its files; deactivating alone leaves them on the server.
- If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan, or have us clean it: Emergency Cleanup, $499.
With WP-CLI, once you have a replacement: wp plugin deactivate responsive-checker-real-time && wp plugin delete responsive-checker-real-time
Check your version
Known vulnerabilities
1 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version. 1 record(s) do not state which versions are affected.
medium 6.4 CVE-2026-8844 · published 2026-05-27
Stored cross-site scripting (XSS) in Responsive Check (0.0.3 and older)
- Affected
- 0.0.3 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber)
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Responsive Check plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'rspcheck' shortcode in versions up to, and including, 0.0.3. This is due to insufficient input sanitization and output escaping on the 'url' (and 'button') shortcode attributes in the rspc_check_shortcode() function, which are echoed directly into iframe src attributes without esc_attr() or esc_url(). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Recent activity
- 2026-05-19 — closed on wordpress.org (Security Issue).
- 2026-05-27 — Stored cross-site scripting (XSS) disclosed (CVE-2026-8844), fix version not stated.
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Browse vulnerabilities
Types found in this plugin: Cross-site scripting (XSS) (1)
Where this data comes from
- Version, last update, installs, closure: wordpress.org/plugins/responsive-checker-real-time (Plugins API), fetched 2026-11-04.
- Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.
Badge for your site or docs (states facts with a date, not a verdict):
<a href="https://laskyr.com/plugins/responsive-checker-real-time"><img src="https://laskyr.com/plugins/responsive-checker-real-time/badge.svg" alt="Responsive Check vulnerability status"></a>