OTCMS 3.61 allows remote attackers to execute arbitrary PHP code via the accBackupDir parameter.

published 2018-09-23 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-9119

cvss: 8.1; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

xiaohuihui1.blogspot.com https://xiaohuihui1.blogspot.com/2018/09/otcms-361-command-execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.1	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/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-94 Improper Control of Generation of Code
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

xiaohuihui1.blogspot.com /2018/09/otcms-361-command-execution.html
exploit, third-party-advisory

Sources

CVE List CVE-2018-17364
NVD CVE-2018-17364

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