DedeCMS 5.7 has CSRF with an impact of arbitrary code execution, because the partcode parameter in a tag_test_action.php request can specif…

published 2018-03-27 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19416

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 74.1%; EPSS 74.1% chance of exploitation in 30 days, percentile 99.4%
public exploits: 0; none known, plus a Nuclei check

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.

Exploit prediction

74.12% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Nuclei template DedeCMS 5.7SP2 - Cross-Site Request Forgery/Remote Code Execution nuclei detection template
laworigin.github.io https://laworigin.github.io/2018/03/07/CVE-2018-7700-dedecms%E5%90%8E%E5%8F%B0%E4%BB%BB%E6%84%8F%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

laworigin.github.io /2018/03/07/CVE-2018-7700-dedecms%E5%90%8E%E5%8F%B0%E4%BB%BB%E6%84%8F%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C/
exploit, third-party-advisory

Sources

CVE List CVE-2018-7700
NVD CVE-2018-7700

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary