PT-2021-18012 · Unknown · Getsimple Cms

Cyc1E183 · Published 2021-06-23 · Updated 2021-06-25 · CVE-2021-28977

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: GetSimpleCMS version 3.3.16

Description: The issue concerns a Cross Site Scripting vulnerability. It can be exploited in the admin/upload.php file by adding comments or jpg and other file header information to the content of xla, pages, and gzip files.

Recommendations: For GetSimpleCMS version 3.3.16, update to a newer version that contains a fix for this issue, as using outdated versions may pose a security risk. As a temporary workaround, consider restricting access to the admin/upload.php file to minimize the risk of exploitation. Avoid using the vulnerable file upload functionality in the admin/upload.php file until the issue is resolved.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-28977

Affected Products

Getsimple Cms

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2021-28977 · Security Note
• https://osv.dev/vulnerability/CVE-2021-28977 · Vendor Advisory
• https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1336 · Note