CVE-2026-61823 code16 Sharp - Stored XSS

code16 Sharp < 9.22.5 contains a stored cross-site scripting vulnerability caused by permitting the srcdoc attribute on iframe elements in the rich-text editor, letting authenticated users with Editor field permission execute JavaScript when content is viewed.

CVSS base score 7.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Published
24 September 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Upgrade to version 9.22.5 or later; alternatively, manually sanitize Editor field content and remove iframe srcdoc attributes.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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