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Fencer Vulns
high 7.2

CVE-2018-16343 json

SeaCMS 6.61 allows remote attackers to execute arbitrary code because parseIf() in include/main.class.php does not block use of $GLOBALS.

published 2018-09-02 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8190

cvss
7.2
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

SeaCMS 6.61 allows remote attackers to execute arbitrary code because parseIf() in include/main.class.php does not block use of $GLOBALS.

Exploit prediction

2.70% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/cumtxujiabin/CmsPoc/blob/master/Seacms_v6.61_backend_RCE.md referenced PoC, tagged "exploit" by a source, unverified
  • zhinianyuxin.postach.io http://zhinianyuxin.postach.io/post/seacms-v6-61-latest-version-backend-rce referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.2 CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

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.