In iCMS <=8.0.0, a directory traversal vulnerability allows an attacker to read arbitrary files.

published 2022-02-04 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31775

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.6%; EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits: 0; none known

Exploit prediction

1.61% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

gem-love.com https://gem-love.com/2021/12/10/ICMS-8-0-0%E5%90%8E%E5%8F%B0%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%960day%E6%BC%8F%E6%B4%9E%E5%88%86%E6%9E%90/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

gem-love.com /2021/12/10/ICMS-8-0-0%E5%90%8E%E5%8F%B0%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%960day%E6%BC%8F%E6
exploit, third-party-advisory

Sources

CVE List CVE-2021-44977
NVD CVE-2021-44977

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