PHPOffice PhpSpreadsheet before 1.8.0 has an XXE issue. The XmlScanner decodes the sheet1.xml from an .xlsx to utf-8 if something else than UTF-8 is declared in the header. This was a security measurement to prevent CVE-2018-19277 but the fix is not sufficient. By double-encoding the the xml payload to utf-7 it is possible to bypass the check for the string ‚<!ENTITY‘ and thus allowing for an xml external entity processing (XXE) attack.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2019-0763 | PHPOffice PhpSpreadsheet before 1.8.0 has an XXE issue. The XmlScanner decodes the sheet1.xml from an .xlsx to utf-8 if something else than UTF-8 is declared in the header. This was a security measurement to prevent CVE-2018-19277 but the fix is not sufficient. By double-encoding the the xml payload to utf-7 it is possible to bypass the check for the string ‚<!ENTITY‘ and thus allowing for an xml external entity processing (XXE) attack. |
Github GHSA |
GHSA-vvwv-h69m-wg6f | XXE in PHPSpreadsheet due to incomplete fix for previous encoding issue |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 04 Sep 2024 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Phpoffice
Phpoffice phpspreadsheet |
|
| CPEs | cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Phpspreadsheet Project
Phpspreadsheet Project phpspreadsheet |
Phpoffice
Phpoffice phpspreadsheet |
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T23:17:39.846Z
Reserved: 2019-05-27T00:00:00
Link: CVE-2019-12331
No data.
Status : Modified
Published: 2019-11-07T15:15:10.697
Modified: 2024-11-21T04:22:37.817
Link: CVE-2019-12331
No data.
OpenCVE Enrichment
No data.
EUVD
Github GHSA