What is CVE-2021-35437?

CVE-2021-35437 is a critical-severity vulnerability in Lmxcms, classified under SQL Injection. CVSS score: 9.8/10. Published 2023-11-16.

How severe is CVE-2021-35437?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SQL Injection in Lmxcms

CVE-2021-35437

SQL injection vulnerability in LMXCMS v.1.4 allows attacker to execute arbitrary code via the TagsAction.class.

Vulnerability class: SQL Injection

Published 2023-11-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Lmxcms — versions 1.4

Weakness classification (CWE)

CWE-89 — SQL Injection

References

github.com/GHA193/Vulns/blob/main/lmxcms injection.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-35437?: CVE-2021-35437 is a critical-severity vulnerability in Lmxcms, classified under SQL Injection. CVSS score: 9.8/10. Published 2023-11-16.
How severe is CVE-2021-35437?: Critical severity. CVSS v3 base score is 9.8 out of 10.