RCE in Philz1337x Clarity-Upscaler
CVE-2026-108942
A security flaw has been discovered in philz1337x clarity-upscaler up to cfbdb842c6c839c8e97741722b8cf9a4b7662d98. This impacts the function create_html_for_item of the file modules/ui_extra_networks.py of the component Extra Networks Card Rendering. The manipulation of the argument Description results in cross site scripting. The attack can be executed remotely. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. All versions in the repository are affected, as the codebase is based on AUTOMATIC1111/stable-diffusion-webui v1.7.0 code. Upstream AUTOMATIC1111/stable-diffusion-webui (v1.8.0, released March 1, 2024) contains the fix. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Philz1337x Clarity-Upscaler — versions cfbdb842c6c839c8e97741722b8cf9a4b7662d98
Weakness classification (CWE)
References
- vuldb.com/vuln/416767 (technical-description, vdb-entry)
- vuldb.com/vuln/416767/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-108942 (third-party-advisory)
- vuldb.com/submit/997640 (third-party-advisory)
- github.com/philz1337x/clarity-upscaler/issues/72 (issue-tracking)
- github.com/philz1337x/clarity-upscaler/ (product)
Frequently asked questions
- What is CVE-2026-108942?
- CVE-2026-108942 is a low-severity vulnerability in Philz1337x Clarity-Upscaler, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-10-13.
- How severe is CVE-2026-108942?
- Low severity. CVSS v3 base score is 3.5 out of 10.