CVE-2026-105261: Schedule Post Changes With PublishPress Future cross-site scripting (XSS) vulnerability
medium 6.8 published 2026-10-14
- Affected versions
- 4.10.1 up to (not including) 4.10.6
- Fixed in
- 4.10.6
- Latest version
- 4.11.2
- 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 Schedule Post Changes With PublishPress Future to 4.10.6 or newer (the latest is 4.11.2): 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 Schedule Post Changes With PublishPress Future issue.
With WP-CLI:
wp plugin get post-expirator --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 Schedule Post Changes With PublishPress Future: Unpublish, Delete, Change Status, Trash, Change Categories WordPress plugin before 4.10.6 does not enforce a safe HTML-element allowlist on a shortcode attribute and does not neutralise attacker-controlled text placed inside the resulting element, allowing users with the Contributor role and above to store JavaScript that executes in the session of any higher-privileged user who views the content.
References
- NVD CVE-2026-105261 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/post-expirator (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.