Description

OpenPanel through 2.3.0 contains a CSV formula injection vulnerability that allows unauthenticated attackers to embed spreadsheet formulas by supplying crafted profile IDs to the /track endpoint. Attackers can send tracking events with profile IDs like =HYPERLINK(...) matching a cohort, so exported cohort CSVs execute formulas that exfiltrate adjacent cell data.

Related CPE's

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References

https://github.com/Openpanel-dev/openpanel

https://github.com/Openpanel-dev/openpanel/blob/7c4d22ae4b6b20fb08eb5c94a0cd3cfebb3d32ca/apps/start/src/utils/csv-download.ts#L1-L29

https://hackmd.io/@haind/openpanel-cohort-csv-formula-injection

https://www.vulncheck.com/advisories/openpanel-through-2.3.0-csv-formula-injection-via-cohort-member-export

Weaknesses

[email protected]

Primary
CWE-1236

CVSS impact metrics

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

4.2 · Medium

Information

Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-10T16:16:31.080Z

1 hour ago

Last modified

2026-10-10T16:16:31.193Z

1 hour ago