What is CVE-2023-26781?

CVE-2023-26781 is a critical-severity vulnerability in Chshcms Mccms, classified under SQL Injection. CVSS score: 9.8/10. Published 2023-04-28.

How severe is CVE-2023-26781?

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

SQL Injection in Chshcms Mccms

CVE-2023-26781

SQL injection vulnerability in mccms 2.6 allows remote attackers to run arbitrary SQL commands via Author Center ->Reader Comments ->Search.

Vulnerability class: SQL Injection

Published 2023-04-28 · 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

Chshcms Mccms — versions 2.6

Weakness classification (CWE)

CWE-89 — SQL Injection

References

github.com/chshcms/mccms/issues/1 (Exploit)

Frequently asked questions

What is CVE-2023-26781?: CVE-2023-26781 is a critical-severity vulnerability in Chshcms Mccms, classified under SQL Injection. CVSS score: 9.8/10. Published 2023-04-28.
How severe is CVE-2023-26781?: Critical severity. CVSS v3 base score is 9.8 out of 10.