Medium 6.4Published May 10, 2026

CVE-2021-47950Advanced Guestbook 2.4.4 Persistent XSS via Smilies

Updated under an hour ago (Oct 26, 2026, 10:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for Ampps Advanced Guestbook

Exploited in the last 30 days

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.

CVSS: 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Ampps Advanced Guestbook ampps:advanced_guestbook (from the name)	2.4.4	CNA record

References

https://www.exploit-db.com/exploits/49875exploit
https://www.ampps.com/apps/guestbooks/Advanced_Guestbookproduct
https://www.vulncheck.com/advisories/advanced-guestbook-persistent-xss-via-smiliesthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.