{"url":"http://public2.vulnerablecode.io/api/packages/968932?format=json","purl":"pkg:pypi/isso@0.13.1.dev0","type":"pypi","namespace":"","name":"isso","version":"0.13.1.dev0","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"0.13.2","latest_non_vulnerable_version":"0.13.2","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/50349?format=json","vulnerability_id":"VCID-p5pe-hean-kfbf","summary":"Isso affected by Stored XSS via comment website field\nThis is a stored Cross-Site Scripting (XSS) vulnerability affecting the website and author comment fields. The website field was HTML-escaped using quote=False, which left single and double quotes unescaped. Since the frontend inserts the website value directly into a single-quoted href attribute via string concatenation, a single quote in the URL breaks out of the attribute context, allowing injection of arbitrary event handlers (e.g. onmouseover, onclick).\n\nThe same escaping was missing entirely from the user-facing comment edit endpoint (PUT /id/<id>) and the moderation edit endpoint (POST /id/<id>/edit/<key>).\n\nAny visitor to a page embedding isso comments is impacted. No authentication or interaction beyond mouse movement is required to trigger a payload — an attacker can post a comment anonymously (moderation is off by default) with a crafted website URL, and the payload persists in the database and fires on every page load. With the full-page invisible overlay technique described in the report, the victim only needs to move their mouse.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-27469","reference_id":"","reference_type":"","scores":[{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28558","published_at":"2026-06-09T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28552","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28586","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28663","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00108","scoring_system":"epss","scoring_elements":"0.28623","published_at":"2026-06-06T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-27469"},{"reference_url":"https://docs.python.org/3/library/html.html#html.escape","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-24T18:49:50Z/"}],"url":"https://docs.python.org/3/library/html.html#html.escape"},{"reference_url":"https://github.com/isso-comments/isso","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/isso-comments/isso"},{"reference_url":"https://github.com/isso-comments/isso/commit/0afbfe0691ee237963e8fb0b2ee01c9e55ca2144","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-24T18:49:50Z/"}],"url":"https://github.com/isso-comments/isso/commit/0afbfe0691ee237963e8fb0b2ee01c9e55ca2144"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27469","reference_id":"CVE-2026-27469","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27469"},{"reference_url":"https://github.com/advisories/GHSA-9fww-8cpr-q66r","reference_id":"GHSA-9fww-8cpr-q66r","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-9fww-8cpr-q66r"},{"reference_url":"https://github.com/isso-comments/isso/security/advisories/GHSA-9fww-8cpr-q66r","reference_id":"GHSA-9fww-8cpr-q66r","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-24T18:49:50Z/"}],"url":"https://github.com/isso-comments/isso/security/advisories/GHSA-9fww-8cpr-q66r"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/74239?format=json","purl":"pkg:pypi/isso@0.13.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/isso@0.13.2"}],"aliases":["CVE-2026-27469","GHSA-9fww-8cpr-q66r"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-p5pe-hean-kfbf"}],"fixing_vulnerabilities":[],"risk_score":"3.1","resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/isso@0.13.1.dev0"}