Arbitrary file upload in Querymine Sms

CVE-2026-6489

A security flaw has been discovered in QueryMine sms up to 7ab5a9ea196209611134525ffc18de25c57d9593. This issue affects some unknown processing of the file admin/addteacher.php of the component Background Management Page. The manipulation of the argument image results in unrestricted upload. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (25.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-6489: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001

Affected products

  • Querymine Sms — versions 7ab5a9ea196209611134525ffc18de25c57d9593

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-6489?
CVE-2026-6489 is a medium-severity vulnerability in Querymine Sms, classified under Improper Access Control. CVSS score: 6.3/10. Published 2026-04-17.
How severe is CVE-2026-6489?
Medium severity. CVSS v3 base score is 6.3 out of 10.