RT-Theme 18 | Extensions: Filesystem traversal
RT-Theme 18 | Extensions is affected by filesystem traversal. Exposure depends on how the affected operation is made reachable by the site. A crafted path can escape the intended directory and reach files or directories elsewhere on the server. The published affected range is <= 2.5.
- Component
- RT-Theme 18 | Extensions
- Plugin slug
rt18-extensions- Affected
- <= 2.5
- Safe version
> 2.5- Published
- Jul 13, 2026
This CVE was published Jul 13, 2026 and is one of 6 known issues for this plugin.
Update, patch or deactivate.
Update RT-Theme 18 | Extensions to a release after 2.5, or disable and remove it until a fixed version is available.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in stmcan RT-Theme 18 | Extensions rt18-extensions allows PHP Local File Inclusion.This issue affects RT-Theme 18 | Extensions: from n/a through <= 2.5.
CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H