CVE-2026-71555
- Source
- https://cve.org/CVERecord?id=CVE-2026-71555
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71555.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-71555
- Aliases
-
- GHSA-j4wr-p8gh-xrw5
- Published
- 2026-08-06T21:51:55Z
- Modified
- 2026-10-26T02:30:21Z
- Severity
-
- 4.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N CVSS Calculator
- Summary
- PILOS: Reverse tabnabbing in room description
- Details
-
PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. From 2.1.0 until 4.14.1, PILOS does not send a Cross-Origin-Opener-Policy response header, so pages opened by PILOS via a link that opens a new browsing context (e.g., target="_blank") retain a window.opener reference back to the originating PILOS tab. A malicious destination page reached this way can use window.opener to navigate or manipulate the original PILOS tab, a technique known as reverse tabnabbing, potentially redirecting an authenticated user to a phishing page that mimics PILOS. This issue is fixed in version 4.14.1.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-1022" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71555.json" }- References
-
- https://github.com/THM-Health/PILOS/releases/tag/v4.14.1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71555.json
- https://github.com/THM-Health/PILOS/security/advisories/GHSA-j4wr-p8gh-xrw5
- https://nvd.nist.gov/vuln/detail/CVE-2026-71555
- https://github.com/THM-Health/PILOS/commit/b50f2bd07c4f4a7d6a9981578238ae3579275d81
Affected packages
Git / github.com/thm-health/pilos
Affected ranges
- Type
- GIT
- Repo
- https://github.com/thm-health/pilos
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "2.1.0" }, { "fixed": "4.14.1" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "b50f2bd07c4f4a7d6a9981578238ae3579275d81" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v4.14.1", "range": [ { "fixed": "82791a0e73f47733897dfcf01d5a9b866889bb83" } ], "source": "REFERENCES_TAG" } ] }
Affected versions
v2.*
v2.1.0
v2.1.1
v2.3.0
v2.3.1
v2.3.2
v2.3.3
v2.3.4
v2.4.0
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v4.*
v4.0.0
v4.0.0-RC.1
v4.0.0-RC.2
v4.0.0-RC.3
v4.0.0-RC.4
v4.0.0-beta.1
v4.0.0-beta.2
v4.1.0
v4.1.1
v4.1.2
v4.10.0
v4.11.0
v4.12.0
v4.13.0
v4.14.0
v4.2.0
v4.3.0
v4.3.1
v4.4.0
v4.5.0
v4.6.0
v4.6.1
v4.7.0
v4.7.1
v4.8.0
v4.9.0