Quick answers
- Is CVE-2026-103908 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103908 being exploited in the wild.
- How severe is CVE-2026-103908?
- Medium severity, with a CVSS score of 5.4, published 6 November 2026.
- Which products and versions are affected?
- WordPress.org AMP for WP – Accelerated Mobile Pages up to and including 1.1.18.
- Is there a fix for CVE-2026-103908?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-103908 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-103908?
- Check whether you run WordPress.org AMP for WP – Accelerated Mobile Pages at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The plugin fails to validate user input before passing it to WordPress's do_shortcode function in the category description output block. Authenticated attackers with custom-level access or above can inject malicious shortcodes that execute with site privileges. The vulnerable setting 'ampforwp-cat-description' is enabled by default, making exploitation straightforward for any authenticated user meeting the access criteria.
Affected products
- Wordpress.org AMP for WP – Accelerated Mobile Pages up to and including 1.1.18
Timeline
- 2026-11-06: disclosed