CVE-2026-78140 Dromara UJCMS web-file-template Endpoint WebFileTemplateController.java update special elements in template engine
Remote attackers with permissions can inject malicious code into the template engine via the web-file-template endpoint, leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78140?
CVE-2026-78140 is a medium-severity code injection vulnerability in Dromara UJCMS, published on 23 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw has been found in Dromara UJCMS up to 10.1.3. The impacted element is the function update of the file src/main/java/com/ujcms/cms/ext/web/backendapi/WebFileTemplateController.java of the component web-file-template Endpoint. Executing a manipulation can lead to improper neutralization of special elements used in a template engine. The attack can be launched remotely. The exploit has been published and may be used.
Which versions are affected by CVE-2026-78140?
How do I fix CVE-2026-78140?
No fix has been published for CVE-2026-78140 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-78140 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78140 exists.
Sources
Also known as GHSA-m2hx-w98g-mrrp.