Medium 5.4Published Jan 16, 2026

CVE-2021-47808Cotonti Siena 0.9.19 contains a stored cross-site scripting vulnerability in the admin configuration panel's site title parameter.

Updated under an hour ago (2026-10-19 06:25 UTC)

Does this affect you?

It affects cotonti_siena. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for cotonti_siena

Exploited in the last 30 days

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.

CVSS: 5.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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: Not given
NVD analysis: Modified
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

cotonti cotonti_siena cotonti:cotonti_siena	0.9.19	NVD

References

https://cotonti.combroken-link
https://www.cotonti.com/download/product
https://www.exploit-db.com/exploits/50016exploit
https://www.vulncheck.com/advisories/cotonti-siena-maintitle-stored-cross-site-scriptingthird-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.