OsTende

OsTende has one disclosed vulnerability in the WordSec catalog, all reported in 2026; it remains unpatched as of September 2026. Their average CVSS score is 8.1, and the most serious one scores 8.1 out of 10. Severity breakdown: 0 critical and 1 high.

The most common weakness is PHP Remote File Inclusion, behind 1 of the records (100%).

The one issue recorded for OsTende has no published fix yet, which makes virtual patching the only reliable mitigation. The oldest unresolved one dates back to 2026.

All of these findings were reported by Bonds. OsTende is installed on roughly 200 WordPress sites, so each unpatched flaw has a wide blast radius. The upstream project has not shipped an update in about 6 years, so new fixes are unlikely to arrive on their own.

Strategic Overview

Avg CVSSHigh

8.1/ 10

Patch Coverage0%

Open

Fixed

Get automatic notifications for all OsTende vulnerabilities before they are exploited.

Most severe open issueCVSS 8.1CVE-2026-27986

OsTende <= 1.4.3 - Unauthenticated Local File Inclusion

Read the full analysis

Vulnerability Records

1 records


2026-03-02 00:00	OsTende <= 1.4.3 - Unauthenticated Local File Inclusion OsTende <= 1.4.3	`CVE-2026-27986`	8.1 High	Bonds	No

Showing 1–1 of 1 reports

Latestv1.1.13

OsTende

Author

https://themerex.net/

0.0(0)

0/100

Last Updated

2020-03-03 (7y ago)

Active Installs

200+

Downloads

8,347

Requires WP

4.5+

Requires PHP

5.6+

Created

2020-03-01 (7y ago)

OsTende - excellent WordPress theme with many different blog and header layouts. 100% Elementor compatible, responsive & SEO friendly. If you run a theater website, theater news portal, a website dedicated to displaying theatrical, Performing Arts events and activities, OsTende will be a perfect catch for you. Author's site: https://themerex.net/