PT-2021-23693 · Grand Vice Info · Webopac7

Yu Chengli + 1 · Published 2021-11-15 · Updated 2021-11-16 · CVE-2021-42839

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Grand Vice info Co. webopac7 (affected versions not specified)

Description The issue concerns the file upload function in webopac7, which fails to filter special characters. This allows remote attackers to upload malicious scripts and execute arbitrary code, potentially controlling the system or interrupting services, by logging in with general user permissions.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2021-42839

Affected Products

Webopac7

References · 4

• https://osv.dev/vulnerability/CVE-2021-42839 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-42839 · Security Note
• https://t.me/cvenotify/23423 · Telegram Post
• https://twcert.org.tw/tw/cp-132-5288-9d546-1.html · Note