CVE-2021-27112

Name: CVE-2021-27112
Creator: NVD / NIST
Published: 2021-04-15T16:15:13.907+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.42%

Last modified Jun 17, 2026

CVE-2021-27112 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. LightCMS v1.3.5 contains a remote code execution vulnerability in /app/Http/Controllers/Admin/NEditorController.php during the downloading of external images.. EPSS estimates a 2.42% chance of exploitation in the next 30 days.

Description

LightCMS v1.3.5 contains a remote code execution vulnerability in /app/Http/Controllers/Admin/NEditorController.php during the downloading of external images.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.42%

82.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Lightcms Project	Lightcms	1.3.5

References

https://github.com/eddy8/LightCMS/issues/19Exploit, Issue Tracking, Third Party Advisory
https://github.com/eddy8/LightCMS/issues/19Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Apr 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27112?

LightCMS v1.3.5 contains a remote code execution vulnerability in /app/Http/Controllers/Admin/NEditorController.php during the downloading of external images.

How severe is CVE-2021-27112?

CVE-2021-27112 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.42% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27112?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27112?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST