Vendor
Phpoffice vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 9 vulnerabilities in Phpoffice: 0 in the last 7 days and 3 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-59932, was published on 28 July 2026. 1 technology has a page of its own.
- Last 7 days
- 0
- Last 90 days
- 3
- Critical, all time
- 2
- Exploited in the wild
- 0
About Phpoffice
An organization providing a collection of PHP libraries for working with various office file formats.
Phpoffice technologies
Latest Phpoffice vulnerabilities
- CVE-2026-59932: PHPOffice PhpSpreadsheet denial of service via Gnumeric gzip expansionhighCVSS 7.5
- CVE-2026-59933: PHPOffice PhpSpreadsheet denial of service in OLE readerhighCVSS 7.5
- CVE-2026-59931: PHPOffice PhpSpreadsheet SSRF bypass in WEBSERVICE domain whitelisthighCVSS 7.7
- CVE-2026-45034: PHPOffice PhpSpreadsheet security bypass in File::prohibitWrapperscriticalCVSS 9.2
- CVE-2026-40902: PHPOffice PhpSpreadsheet CPU denial of service in XLSX readerhighCVSS 7.5
- CVE-2026-40863: PhpSpreadsheet has CPU Denial of Service via Unbounded Row Index in SpreadsheetML XML ReaderhighCVSS 7.5
- CVE-2026-40296: PHPOffice PhpSpreadsheet XSS in HTML writer via number format bypassmediumCVSS 5.4
- CVE-2026-35453: PHPOffice PhpSpreadsheet XSS in HTML Writer via NumberFormatmediumCVSS 5.4EPSS 0.2%
- CVE-2026-34084: PHPOffice PhpSpreadsheet RCE and SSRF via PHP Stream WrapperscriticalCVSS 9.8EPSS 0.7%
Most severe Phpoffice vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-34084: PHPOffice PhpSpreadsheet RCE and SSRF via PHP Stream WrapperscriticalCVSS 9.8EPSS 0.7%
- CVE-2026-45034: PHPOffice PhpSpreadsheet security bypass in File::prohibitWrapperscriticalCVSS 9.2
- CVE-2026-59931: PHPOffice PhpSpreadsheet SSRF bypass in WEBSERVICE domain whitelisthighCVSS 7.7
- CVE-2026-59932: PHPOffice PhpSpreadsheet denial of service via Gnumeric gzip expansionhighCVSS 7.5
- CVE-2026-59933: PHPOffice PhpSpreadsheet denial of service in OLE readerhighCVSS 7.5
- CVE-2026-40902: PHPOffice PhpSpreadsheet CPU denial of service in XLSX readerhighCVSS 7.5
- CVE-2026-40863: PhpSpreadsheet has CPU Denial of Service via Unbounded Row Index in SpreadsheetML XML ReaderhighCVSS 7.5
- CVE-2026-35453: PHPOffice PhpSpreadsheet XSS in HTML Writer via NumberFormatmediumCVSS 5.4EPSS 0.2%
- CVE-2026-40296: PHPOffice PhpSpreadsheet XSS in HTML writer via number format bypassmediumCVSS 5.4
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 3 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/phpoffice.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Phpoffice vulnerabilities", https://junglewise.ai/threats/vendors/phpoffice, 26 September 2026.