TI-2026-76141 Aliases CVE-2026-111984 GHSA-39xx-5fr9-wx26

Cross-site scripting in stable-diffusion-webui Card Builder

MEDIUM 63CWE-79Published 2026-10-18 · Updated 2026-10-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting, Code execution
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-94.

Summary

AUTOMATIC1111 stable-diffusion-webui up to and including 1.10.1 contains a cross-site scripting flaw in its Card Builder component. The create_item_html function in modules/ui_extra_networks.py does not neutralize the filename argument when it generates web page content (CWE-79). A remote attacker can manipulate filename to make script run in a user's browser. A public exploit has been disclosed and is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00358 29th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
AUTOMATIC1111	stable-diffusion-webui	1.10.0; 1.10.1	—	No fix listed	CNA

stable-diffusion-webui VendorAUTOMATIC1111 Affected 1.10.0; 1.10.1 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:automatic1111:stable-diffusion-webui::::::::	—	—	AUTOMATIC1111

cpe:2.3:a:automatic1111:stable-diffusion-webui:*:*:*:*:*:*:*:* Versions — — ·AUTOMATIC1111

Remediation

The sources list no fixed version for stable-diffusion-webui.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

2026-10-18 Threatist record created from CVE-2026-111984
2026-10-18 Alias added: GHSA-39xx-5fr9-wx26
2026-10-19 CISA SSVC decision points changed
2026-10-19 Priority changed: LOW → MEDIUM

References

Exploit 1

https://github.com/user-attachments/files/32810554/poc.zip

Other 2

TI-2026-56753 Stable Diffusion WebUI Credential Disclosure via /sdapi/v1/cmd-flags CVSS 4.0HIGH 8.7
TI-2024-10233 Cross-Site WebSocket Hijacking (CSWSH) in automatic1111/stable-diffusion-webui CVSS 3.0CRITICAL 9.6
TI-2024-10136 Unauthenticated DoS via Multipart Boundary in automatic1111/stable-diffusion-webui CVSS 3.0HIGH 7.5
TI-2024-11481 Local File Inclusion in automatic1111/stable-diffusion-webui CVSS 3.0MEDIUM 6.5
TI-2024-11201 Denial of Service in automatic1111/stable-diffusion-webui CVSS 3.0MEDIUM 6.5
TI-2024-11480 Stored XSS in automatic1111/stable-diffusion-webui CVSS 3.1MEDIUM 6.1

See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences