CVE-2026-109215 The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'bbp_reply_content' parameter in all versions
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-109215?
CVE-2026-109215 is a medium-severity vulnerability in litespeedtech LiteSpeed Cache, published on 29 Oct 2026.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-109215?
How do I fix CVE-2026-109215?
No fix has been published for CVE-2026-109215 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-109215 being exploited?
There is no known exploitation of CVE-2026-109215 in the wild and no public exploit code.
Sources
Also known as GHSA-22hp-rp2j-wf97.