Cross-site scripting in shuchkin simplexlsx
Priority LOW 24CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
SimpleXLSX is software for parsing and retrieving data from Excel XLSx files. Starting in 1.0.12 and ending in 1.1.13, when calling the extended toHTMLEx method, it is possible to execute arbitrary JavaScript code. This vulnerability is fixed in 1.1.13.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00255 17th percentileScored 2026-11-07
Fix Fixed simplexlsx (shuchkin): 1.1.13shuchkin/simplexlsx (Packagist): 1.1.13
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| shuchkin | simplexlsx | 1.0.12 to before 1.1.13 | 1.1.13 | Patch available | CNA |
| — | shuchkin/simplexlsx (Packagist) | 1.0.12 to before 1.1.13 | 1.1.13 | Patch available | GHSA-r87q-fj25-f8jf |
- simplexlsx Vendorshuchkin Affected 1.0.12 to before 1.1.13 Fixed in 1.1.13 Patch available CNA
- shuchkin/simplexlsx (Packagist) Vendor— Affected 1.0.12 to before 1.1.13 Fixed in 1.1.13 Patch available GHSA-r87q-fj25-f8jf
Remediation
- Fix · CNA simplexlsx (shuchkin) Fixed in 1.1.13
- Fix · GHSA-r87q-fj25-f8jf shuchkin/simplexlsx (Packagist) Fixed in 1.1.13 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-56364
- 2026-10-03 Alias added: GHSA-r87q-fj25-f8jf
References
More shuchkin vulnerabilities
- TI-2024-36947 Cross-site Scripting vulnerability in SimpleXLSXEx::readXfs and SimpeXLSX::toHTMLEx CVSS 3.1MEDIUM 6.8
Sources
- CVE-2024-56364 · CVE Program
- CVE-2024-56364 · NVD
- FIRST EPSS
- GHSA-r87q-fj25-f8jf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences