Plugins · holler-box · data as of 2026-11-04
Is HollerBox safe? Known vulnerabilities and latest version
- Latest version
- 2.3.15
- Last updated
- 2026-10-06
- Active installs
- 2,000+
- Known issues on record
- 3
- Unpatched in latest
- 0
- Tested up to WP
- 7.1.4
Get more leads and sales with effective popups that convert! Integrate HollerBox with your favorite CRM and email marketing tools. — by Adrian Tobey
What to do
- Update to the latest version (2.3.15). Anything older than 2.3.15 has at least one known issue listed below. Dashboard → Updates, or Plugins → “update now”.
- If you cannot update right away, deactivate it until you can.
- Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
- If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan.
With WP-CLI: wp plugin get holler-box --field=version shows what you run; wp plugin update holler-box updates it.
Check your version
Known vulnerabilities
3 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.
medium 6.5 CVE-2026-106603 · published 2026-10-08
Missing authorization check in HollerBox (2.3.14 and older)
- Affected
- 2.3.14 and older
- Fixed in
- 2.3.15
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Authorization Bypass Through User-Controlled Key vulnerability in Groundhogg HollerBox holler-box allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects HollerBox: from n/a through 2.3.14.
high 7.1 CVE-2026-48885 · published 2026-06-15
Cross-site scripting (XSS) in HollerBox (2.3.10.1 and older)
- Affected
- 2.3.10.1 and older
- Fixed in
- 2.3.11
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Unauthenticated Cross Site Scripting (XSS) in HollerBox <= 2.3.10.1 versions.
medium 4.8 CVE-2023-41657 · published 2023-09-29
Stored cross-site scripting (XSS) in HollerBox (2.3.2 and older)
- Affected
- 2.3.2 and older
- Fixed in
- 2.3.3
- Access needed (per CVSS)
- Needs an admin-level account; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Groundhogg Inc. HollerBox plugin <= 2.3.2 versions.
Recent activity
- 2026-10-06 — latest release on wordpress.org (2.3.15).
- 2026-10-08 — Missing authorization check disclosed (CVE-2026-106603), fixed in 2.3.15.
- 2026-06-15 — Cross-site scripting (XSS) disclosed (CVE-2026-48885), fixed in 2.3.11.
- 2023-09-29 — Stored cross-site scripting (XSS) disclosed (CVE-2023-41657), fixed in 2.3.3.
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Browse vulnerabilities
- Published this week
- Unpatched in the latest version
- By type of vulnerability
- Plugins by Adrian Tobey (3 tracked)
Types found in this plugin: Cross-site scripting (XSS) (2) · Missing authorization (1)
Where this data comes from
- Version, last update, installs: wordpress.org/plugins/holler-box (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/holler-box"><img src="https://laskyr.com/plugins/holler-box/badge.svg" alt="HollerBox vulnerability status"></a>