CVE-2018-12940

Name: CVE-2018-12940
Creator: NVD / NIST
Published: 2018-07-31T14:29:00.497+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.51%

Last modified Jun 17, 2026

CVE-2018-12940 is a vulnerability of currently unknown severity. Unrestricted file upload vulnerability in "op/op.UploadChunks.php" in SeedDMS (formerly LetoDMS and MyDMS) before 5.1.8 allows remote attackers to execute arbitrary code by uploading a file with an executable extension specified by the "qqfile" parameter. This allows an authenticated attacker to upload a malicious file containing PHP code to execute operating system commands to the web root of the application.. EPSS estimates a 2.51% chance of exploitation in the next 30 days.

Description

Unrestricted file upload vulnerability in "op/op.UploadChunks.php" in SeedDMS (formerly LetoDMS and MyDMS) before 5.1.8 allows remote attackers to execute arbitrary code by uploading a file with an executable extension specified by the "qqfile" parameter. This allows an authenticated attacker to upload a malicious file containing PHP code to execute operating system commands to the web root of the application.

Metrics

EPSS Probability

2.51%

82.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Seeddms	Seeddms	< 5.1.8

References

https://sourceforge.net/p/seeddms/code/ci/seeddms-5.1.x/tree/CHANGELOGThird Party Advisory
https://www.contextis.com/resources/advisories/cve-2018-12940Third Party Advisory
https://sourceforge.net/p/seeddms/code/ci/seeddms-5.1.x/tree/CHANGELOGThird Party Advisory
https://www.contextis.com/resources/advisories/cve-2018-12940Third Party Advisory

Timeline

Published: Jul 31, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12940?

How severe is CVE-2018-12940?

Severity scoring for CVE-2018-12940 is pending analysis. The EPSS model estimates a 2.51% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12940?

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-2018-12940?

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

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Source: NVD / NIST