{"items":[{"id":"NVI-00015096","kind":"vulnerability","title":"ep_etherpad-lite: Cache-poisoning Cross-site Scripting and Open Redirect via x-proxy-path Header","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-fjgc-3mj7-8rg8","CVE-2026-55087"],"plain_summary":"GitHub lists this reviewed advisory for ep_etherpad-lite. 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-3837c03f074e4a9bd2c8c7c8ca7a4b4d"],"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":"2026-08-13T13:46:08.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-206655942dd605ac393b1e02697fd7fe"},{"kind":"CVSS","as_of":"2026-09-09T21:15:59.613Z","value":"6.1 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-3837c03f074e4a9bd2c8c7c8ca7a4b4d"}],"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-206655942dd605ac393b1e02697fd7fe","url":"https://github.com/advisories/GHSA-fjgc-3mj7-8rg8","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-fjgc-3mj7-8rg8","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T20:16:47.162Z"},{"id":"sr-3837c03f074e4a9bd2c8c7c8ca7a4b4d","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55087","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55087","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:48:19.229Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-206655942dd605ac393b1e02697fd7fe"],"technology":"ep_etherpad-lite","known_exclusions":[],"conditions_summary":"# GHSA-03 — `x-proxy-path` header reflected into admin HTML/JS/CSS (cache-poisoning XSS) and concatenated into redirect (open-redirect)\n\n**Severity:** Medium\n**CVSS v3.1 vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`\n**CVSS suggested base score:** ~6.1 — Medium\n  *(Re-validate in the first.gov calculator before filing. Score depends heavily on whether you assume a cooperative cache exists in front of the deployment — single-origin admin-only ops with no shared cache push toward 4.x; cache-poisoning against a CDN pushes toward 7.x.)*\n**CWE:** CWE-79 Improper Neutralization of Input During Web Page Generation, CWE-601 URL Redirection to Untrusted Site, CWE-444 Inconsistent Interpretation of HTTP Requests\n\n## Title\n\n`x-proxy-path` request header is interpolated into admin HTML/JS/CSS without sanitisation (cache-poisoning XSS) and into a `/p/:pad/timeslider` redirect target (open-redirect via protocol-relative URL)\n\n## Description\n\nEtherpad lets operators run behind a reverse proxy that prefixes every route with a subpath (e.g. `/pad/etherpad/...`). The proxy is expected to set `x-proxy-path: /pad/etherpad` on every request so that server-rendered links, asset URLs, and redir","public_affected_ranges":[">= 2.1.0, <= 3.0.0"]}],"null_published_at":"2026-11-08T19:53:44.049Z","source_updated_at":"2026-08-13T13:46:08.000Z","source_disclosed_at":"2026-08-13T13:46:07.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-02T20:16:47.162Z"},{"id":"NVI-00015096","kind":"vulnerability","title":"ep_etherpad-lite: Cache-poisoning Cross-site Scripting and Open Redirect via x-proxy-path Header","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-fjgc-3mj7-8rg8","CVE-2026-55087"],"plain_summary":"GitHub lists this reviewed advisory for ep_etherpad-lite. 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-206655942dd605ac393b1e02697fd7fe"],"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":"2026-08-13T13:46:08.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-206655942dd605ac393b1e02697fd7fe"}],"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-206655942dd605ac393b1e02697fd7fe","url":"https://github.com/advisories/GHSA-fjgc-3mj7-8rg8","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-fjgc-3mj7-8rg8","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T20:16:47.162Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-206655942dd605ac393b1e02697fd7fe"],"technology":"ep_etherpad-lite","known_exclusions":[],"conditions_summary":"# GHSA-03 — `x-proxy-path` header reflected into admin HTML/JS/CSS (cache-poisoning XSS) and concatenated into redirect (open-redirect)\n\n**Severity:** Medium\n**CVSS v3.1 vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`\n**CVSS suggested base score:** ~6.1 — Medium\n  *(Re-validate in the first.gov calculator before filing. Score depends heavily on whether you assume a cooperative cache exists in front of the deployment — single-origin admin-only ops with no shared cache push toward 4.x; cache-poisoning against a CDN pushes toward 7.x.)*\n**CWE:** CWE-79 Improper Neutralization of Input During Web Page Generation, CWE-601 URL Redirection to Untrusted Site, CWE-444 Inconsistent Interpretation of HTTP Requests\n\n## Title\n\n`x-proxy-path` request header is interpolated into admin HTML/JS/CSS without sanitisation (cache-poisoning XSS) and into a `/p/:pad/timeslider` redirect target (open-redirect via protocol-relative URL)\n\n## Description\n\nEtherpad lets operators run behind a reverse proxy that prefixes every route with a subpath (e.g. `/pad/etherpad/...`). The proxy is expected to set `x-proxy-path: /pad/etherpad` on every request so that server-rendered links, asset URLs, and redir","public_affected_ranges":[">= 2.1.0, <= 3.0.0"]}],"null_published_at":"2026-11-03T10:03:26.547Z","source_updated_at":"2026-08-13T13:46:08.000Z","source_disclosed_at":"2026-08-13T13:46:07.000Z","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":"2026-11-02T20:16:47.162Z"}],"next_cursor":null,"snapshot_revision":"42594"}