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CVE-2026-111984: stable-diffusion-webui Card Builder allows remote script injection

CVE-2026-111984 · published today

Summary

The Card Builder feature in the stable-diffusion-webui project can be tricked into running malicious code when a specially crafted file name is used. This could let an attacker execute unwanted scripts in a user’s browser, potentially stealing data or altering the web interface. Apply the latest update or patch the affected file to validate and sanitize file name inputs.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
automatic1111	stable-diffusion-webui	1.10.0

Original advisory text

AUTOMATIC1111 stable-diffusion-webui Card Builder ui_extra_networks.py create_item_html cross site scripting

A vulnerability has been found in AUTOMATIC1111 stable-diffusion-webui up to 1.10.1. This affects the function create_item_html of the file modules/ui_extra_networks.py of the component Card Builder. The manipulation of the argument filename leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

References

https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/17497 Third Party Advisory
https://vuldb.com/cve/CVE-2026-111984 Vendor Advisory
https://vuldb.com/submit/1005460 Vendor Advisory
https://vuldb.com/vuln/421650 Vendor Advisory
https://vuldb.com/vuln/421650/cti Third Party Advisory
https://github.com/user-attachments/files/32810554/poc.zip Exploit
https://github.com/AUTOMATIC1111/stable-diffusion-webui/ URL
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-1119... Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-111984 Vendor Advisory

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker partial control (estimated)

Severity

7.8 High

Type

CWE-79Cross-site Scripting (XSS)

CWE-94Code Injection

Timeline

Published18 Oct 2026

Updated19 Oct 2026

First seen18 Oct 2026

Sources

CVE-2026-111984 · NVD

CVE-2026-111984 · MITRE

CVE-2026-111984 · OSV

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