Executive brief
Regular Labs Snippets is a Joomla extension that substitutes variable values into saved content templates. A vulnerability allows lower-privileged article authors to inject malicious code into snippets created by administrators, which then executes in the context of trusted content. This could allow account takeover, data theft, or malware distribution to website visitors.
Technical details
The vulnerability is a stored cross-site scripting (XSS) flaw in the Snippets Free and Pro extensions. Snippets substitutes article author-supplied variable values (via url option) into pre-defined snippet content without validating the author's privilege level. A lower-privileged author can inject malicious JavaScript into a security-sensitive position within a snippet authored by a trusted administrator. The injected payload persists in the database and executes whenever the snippet is rendered, affecting all website visitors. Patches are available in Snippets Free 7.0.0+ and Snippets Pro 11.0.0+.
Affected products
- Regular Labs Snippets Free < 7.0.0
- Regular Labs Snippets Pro < 11.0.0
Timeline
- 2026-09-14: disclosed: CVE-2026-88852 published