What is CVE-2026-26682?

CVE-2026-26682 is a high-severity vulnerability in Xjd2020 Fastcms, classified under Code Injection. CVSS score: 7.8/10. Published 2026-02-26.

How severe is CVE-2026-26682?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Xjd2020 Fastcms

CVE-2026-26682

An issue in fastCMS before v.0.1.6 allows a local attacker to execute arbitrary code via the PluginController.java component

Vulnerability class: RCE (Remote Code Execution)

Published 2026-02-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (11.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Xjd2020 Fastcms

Weakness classification (CWE)

CWE-94 — Code Injection

References

github.com/sorzs/test/tree/main/fastcms-rce (Exploit, Third Party Advisory)
gist.github.com/sorzs/e3913b814e2e5548aa66de6c25b0510a (Third Party Advisory)

Frequently asked questions

What is CVE-2026-26682?: CVE-2026-26682 is a high-severity vulnerability in Xjd2020 Fastcms, classified under Code Injection. CVSS score: 7.8/10. Published 2026-02-26.
How severe is CVE-2026-26682?: High severity. CVSS v3 base score is 7.8 out of 10.