{"items":[{"id":"NVI-00016219","kind":"vulnerability","title":"Open WebUI: Stored XSS to Account Takeover via Model Profile Images ","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-v2qm-5wxj-qhj7","CVE-2026-54013"],"plain_summary":"GitHub lists this reviewed advisory for open-webui. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-4b70167ecd8fd9b24490ecb4dbaaca52"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-20T21:05:04.000Z","value":"7.6 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-4b70167ecd8fd9b24490ecb4dbaaca52"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-4b70167ecd8fd9b24490ecb4dbaaca52","url":"https://github.com/advisories/GHSA-v2qm-5wxj-qhj7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-v2qm-5wxj-qhj7","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T02:47:44.783Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4b70167ecd8fd9b24490ecb4dbaaca52"],"technology":"open-webui","known_exclusions":[],"conditions_summary":"# Stored XSS to Account Takeover via Model Profile Images in Open WebUI\n\n**Affected:** Open WebUI <= 0.9.5\n**Bypass of:** GHSA-3wgj-c2hg-vm6q, GHSA-3856-3vxq-m6fc\n\n---\n\n## TL;DR\n\nOpen WebUI patched SVG XSS in user profile images and webhook profile images  but forgot to apply the same fix to **model** profile images. The `ModelMeta` class has no `validate_profile_image_url` field validator, and the model image serving endpoint has no MIME allowlist or `nosniff` header. Any authenticated user with `workspace.models` permission (enabled by default) can store a `data:image/svg+xml;base64,...` payload in a model's profile image and achieve full account takeover of anyone who navigates to the image URL.\n\n---\n\n## Past of the issue\n\nIn early 2025, two security advisories landed for Open WebUI:\n\n- **GHSA-3wgj-c2hg-vm6q**  SVG XSS via user profile images\n- **GHSA-3856-3vxq-m6fc**  SVG XSS via webhook profile images\n\nThe patches were clean. A `validate_profile_image_url` function was introduced in `backend/open_webui/utils/validate.py`  a compiled regex that restricts `data:` URIs to safe raster formats (`image/png`, `image/jpeg`, `image/gif`, `image/webp`), explicitly excluding `image/svg+x","public_affected_ranges":["<= 0.9.5"]}],"null_published_at":"2026-11-04T10:04:27.920Z","source_updated_at":"2026-07-20T21:05:04.000Z","source_disclosed_at":"2026-06-17T14:15:52.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-04T02:47:44.783Z"}],"next_cursor":null,"snapshot_revision":"42594"}