CVE-2026-108579CWE-1236

CVE-2026-108579

Medium · published October 10, 2026

CVSS v3.1
4.2
EPSS
0%
Percentile
8.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.2 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
2.3 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00196 · 8.8th percentile
Weakness
CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
Published
2026-10-10T20:16Z
References (4)
https://github.com/Openpanel-dev/openpanel · [email protected]https://github.com/Openpanel-dev/openpanel/blob/7c4d22ae4b6b20fb08eb5c94a0cd3cfebb3d32ca/apps/start/src/utils/csv-download.ts#L1-L29 · [email protected]https://hackmd.io/@haind/openpanel-cohort-csv-formula-injection · [email protected]https://www.vulncheck.com/advisories/openpanel-through-2.3.0-csv-formula-injection-via-cohort-member-export · [email protected]
EPSS history
Timeline
  • 12 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 10 OCT 15:57Z
    OpenPanel through 2.3.0 CSV Formula Injection via Cohort Member Export
    cvelistv5
  • 10 OCT 15:57Z
    OpenPanel through 2.3.0 CSV Formula Injection via Cohort Member Export
    cvelistv5