anySign directory traversal vulnerability

published 2021-11-22 4y ago modified 2026-06-17 4mo ago also EUVD-2020-28814

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

Using the parameter of getPFXFolderList function, attackers can see the information of authorization certification and delete the files. It occurs because the parameter contains path traversal characters(ie. '../../../')

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Exploit prediction

1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD	2.0	6.4	AV:N/AC:L/Au:N/C:P/I:P/A:N

Affected products

Hancomwith anySign4PC

Classification

Weakness

CWE-24 Path Traversal: '../filedir'
CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

boho.or.kr /krcert/secNoticeView.do?bulletin_writing_sequence=36344
third-party-advisory

Sources

CVE List CVE-2020-7882
NVD CVE-2020-7882

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