CVE-2026-18558 Embed Any Document <= 2.7.13 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'embeddoc' Shortcode
Authenticated contributors can inject arbitrary scripts via the embeddoc shortcode, leading to potential session hijacking or malicious actions when viewed by other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18558?
CVE-2026-18558 is a medium-severity cross-site scripting vulnerability in awsmin Embed Any Document – Embed PDF, Word, PowerPoint and Excel Files, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Embed Any Document – Embed PDF, Word, PowerPoint and Excel Files plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'embeddoc' shortcode in all versions up to, and including, 2.7.13 due to insufficient input sanitization and output escaping. 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-18558?
How do I fix CVE-2026-18558?
No fix has been published for CVE-2026-18558 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-18558 being exploited?
There is no known exploitation of CVE-2026-18558 in the wild and no public exploit code.
Sources
Also known as GHSA-cm59-2v4c-p8f9.