What is CVE-2018-7700?

CVE-2018-7700 is a high-severity vulnerability in Dedecms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2018-03-27.

How severe is CVE-2018-7700?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2018-7700 known to be exploited?

10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Dedecms

CVE-2018-7700

DedeCMS 5.7 has CSRF with an impact of arbitrary code execution, because the partcode parameter in a tag_test_action.php request can specify a runphp field in conjunction with PHP code.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2018-03-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.741 (99.5th percentile), scored 2026-10-16.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.646 · newest: 0.741 · change: +0.095

Affected products

Dedecms — versions 5.7

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

References

laworigin.github.io/2018/03/07/CVE-2018-7700-dedecms后台任意代码执行/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-7700?: CVE-2018-7700 is a high-severity vulnerability in Dedecms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2018-03-27.
How severe is CVE-2018-7700?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2018-7700 known to be exploited?: 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.