CVE-2021-47808

low-risk
Published 2026-01-16

Cotonti Siena 0.9.19 contains a stored cross-site scripting vulnerability in the admin configuration panel's site title parameter. Attackers can inject malicious JavaScript code through the 'maintitle' parameter to execute scripts when administrators view the page.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.4/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Cotonti Siena

Affected Vendors

Cotonti

References (5)

Broken Link https://cotonti.com
Product https://www.cotonti.com/download/
Exploit https://www.exploit-db.com/exploits/50016
Third Party Advisory https://www.vulncheck.com/advisories/cotonti-siena-maintitle-stored-cross-site-s...
Exploit https://www.exploit-db.com/exploits/50016
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal