CVE-2026-104652: Envira Gallery cross-site scripting (XSS) vulnerability
medium 6.8 published 2026-10-07
- Affected versions
- older than 1.16.1
- Fixed in
- 1.16.1
- Latest version
- 1.16.3
- Severity
- Medium · CVSS 6.8
- Active installs
- 100,000+
- Type
- Cross-site scripting (XSS)
What an attacker needs
- Access: An admin-level account (per the CVSS score).
- Interaction: It also needs someone on the site (often an admin) to click a link, open a page or submit a form the attacker prepared.
CVSS vector (score by CISA ADP): CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
What to do now
- Update Envira Gallery to 1.16.1 or newer (the latest is 1.16.3): 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.
- Not sure which version you run? Check your version against every known Envira Gallery issue.
With WP-CLI:
wp plugin get envira-gallery-lite --field=version. - If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.
The advisory
The Envira Gallery WordPress plugin before 1.16.1 does not sanitise and escape a gallery item identifier before outputting it in an image tag attribute, allowing users with the Author role and above to inject arbitrary web scripts that execute when any visitor, including an administrator, views a page embedding the gallery.
References
- NVD CVE-2026-104652 nvd.nist.gov
- WPScan advisory wpscan.com
Related
Ran an affected version? Check your site for signs of a hack
The free scan reads the public side of your site and looks for spam pages, hidden redirects, injected scripts and blacklist entries. No login, no install, about a minute.
Where this data comes from
- CVE record, score and references: 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.
- Versions and install counts: wordpress.org/plugins/envira-gallery-lite (Plugins API), fetched 2026-11-04.
- The summary, “what an attacker needs” and “what to do” sections are our plain-English reading of the record and the plugin's release history; the quoted description is the record's own text. Spot an error? Email Daniel.