Vulnerability details
CVE-2026-115943
Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt
CVSS 3.1
9.8Critical
Official description
Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt. When a number format has a condition such as [>100], ExcelFmt chooses the format section by passing the condition and the cell value to a string eval. Both come from the workbook, and the eval runs while Spreadsheet::XLSX->new parses it. An attacker who supplies an XLSX file can run arbitrary Perl code.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| No product information recorded. | |||
References and advisories
2
Kolun on Telegram @kolunsec
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Details
- Published
- 2026-10-30
- Last updated
- 2026-11-06
- State
- Published
- Assigner (CNA)
- CPANSec
- Kolun priority
- 27 · Low
Exploit prediction (EPSS)
0.61%
Probability of exploitation in 30 days
49.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')