Live › vulnerability › CVE-2026-109215
The LiteSpeed Cache WordPress plugin fails to sanitize the 'bbp_reply_content' parameter, so a logged-in subscriber can store script that runs for anyone who opens the affected page. Exploitation additionally requires Viewport Images enabled with a matching filename and bbPress replies that allow raw img tags.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-29 10:24 UTC. All times on this page are UTC.
Sites running LiteSpeed Cache up to and including 7.9.1 where an administrator has enabled Viewport Images with a configured filename and where users can post raw img tags through bbPress replies, as the sources describe. Sites without VPI enabled or without that user-generated content path are not described as exposed.
No product ranges from the sources yet.
7.9.1 are affected.7.9.1 are affected; the sources do not state a fixed version.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'bbp_reply_content' parameter in all versions up to, and including, 7.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that an administrator has enabled Viewport Images (VPI) and configured a VPI filename that matches an image the attacker can embed in user-generated content — such as a bbPress topic where Subscriber-level Participants are permitted to post replies containing raw img tags.
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