High severityNVD Advisory· Published Nov 7, 2019· Updated Aug 4, 2024
CVE-2019-12331
CVE-2019-12331
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
phpoffice/phpspreadsheetPackagist | < 1.8.0 | 1.8.0 |
phpoffice/phpexcelPackagist | <= 1.8.2 | — |
Affected products
3- PHPOffice/PhpSpreadsheetdescription
- ghsa-coords2 versions
<= 1.8.2+ 1 more
- (no CPE)range: <= 1.8.2
- (no CPE)range: < 1.8.0
Patches
Vulnerability mechanics
References
9- github.com/advisories/GHSA-vvwv-h69m-wg6fghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2019-12331ghsaADVISORY
- github.com/FriendsOfPHP/security-advisories/blob/master/phpoffice/phpspreadsheet/CVE-2019-12331.yamlghsaWEB
- github.com/PHPOffice/PhpSpreadsheet/blob/master/CHANGELOG.mdghsax_refsource_CONFIRMWEB
- github.com/PHPOffice/PhpSpreadsheet/commit/0e6238c69e863b58aeece61e48ea032696c6dccdghsaWEB
- github.com/PHPOffice/PhpSpreadsheet/pull/1041ghsaWEB
- github.com/PHPOffice/PhpSpreadsheet/releases/tag/1.8.0ghsaWEB
- herolab.usd.de/security-advisories/usd-2019-0046ghsaWEB
- herolab.usd.de/security-advisories/usd-2019-0046/mitrex_refsource_MISC
News mentions
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