PT-2021-10614 · Unknown · Getsimple Cms

Jinnywco · Published 2021-08-06 · Updated 2021-08-09 · CVE-2020-21353

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: GetSimple CMS version 3.4.0a

Description: A stored cross site scripting (XSS) issue allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the Edit Snippets module, specifically targeting the /admin/snippets.php endpoint. The Edit Snippets module is vulnerable to this issue, potentially allowing attackers to inject malicious scripts.

Recommendations: For GetSimple CMS version 3.4.0a, consider disabling the Edit Snippets module until a patch is available to prevent exploitation of the stored XSS vulnerability. Restrict access to the /admin/snippets.php endpoint to minimize the risk of arbitrary web script execution. Avoid using the Edit Snippets module with untrusted input until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-21353

Affected Products

Getsimple Cms

References · 4

• 🔥 https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1319 · Exploit
• https://osv.dev/vulnerability/CVE-2020-21353 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-21353 · Security Note
• https://t.me/cvenotify/18820 · Telegram Post