How severe is CVE-2026-78140?

CVE-2026-78140 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-78140 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-78140?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-78140 published?

CVE-2026-78140 was published on 2026-08-23 and last updated on 2026-08-24.

CVE-2026-78140

CVE-2026-78140 is a medium-severity vulnerability with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-791.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 5.8
CVSS v4: 2.0
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-791
Published: 2026-08-23
Last modified: 2026-08-24

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.

Frequently asked questions

What is CVE-2026-78140?: 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.
How severe is CVE-2026-78140?: CVE-2026-78140 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-78140 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-78140?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-78140 published?: CVE-2026-78140 was published on 2026-08-23 and last updated on 2026-08-24.

References

Other CWE-791 vulnerabilities

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