CVE-2021-47950 - CVE House
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Status published Medium CVE-2021-47950

Advanced Guestbook 2.4.4 Persistent XSS via Smilies

Vulnerability Description

Advanced Guestbook 2.4.4 contains a persistent cross-site scripting vulnerability in the smilies administration interface that allows authenticated attackers to inject malicious scripts by manipulating the s_emotion parameter. Attackers can submit POST requests to admin.php with JavaScript code in the s_emotion field, which executes when administrators view the smilies tab.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Abdulkadir AYDOGAN

Affected Vendor

Affected Software

Advanced Guestbook
Vulnerable Versions:
2.4.4

Timeline

Official Publish: May 10th, 2026
Last Modified: July 15th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Weaknesses (CWE)