CVE-2023-24813
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-24813
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-24813.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-24813
- Aliases
- Published
- 2023-02-07T19:15:09Z
- Modified
- 2024-09-18T03:23:14.569872Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Dompdf is an HTML to PDF converter written in php. Due to the difference in the attribute parser of Dompdf and php-svg-lib, an attacker can still call arbitrary URLs with arbitrary protocols. Dompdf parses the href attribute of
imagetags and respectsxlink:hrefeven ifhrefis specified. However, php-svg-lib, which is later used to parse the svg file, parses the href attribute. Sincehrefis respected if bothxlink:hrefandhrefis specified, it's possible to bypass the protection on the Dompdf side by providing an emptyxlink:hrefattribute. An attacker can exploit the vulnerability to call arbitrary URLs with arbitrary protocols if they provide an SVG file to the Dompdf. In PHP versions before 8.0.0, it leads to arbitrary unserialize, which will lead, at the very least, to arbitrary file deletion and might lead to remote code execution, depending on available classes. This vulnerability has been addressed in commit95009ea98which has been included in release version 2.0.3. Users are advised to upgrade. There are no known workarounds for this vulnerability. - References
Affected packages
Debian:12 / php-dompdf
Package
- Name
- php-dompdf
- Purl
- pkg:deb/debian/php-dompdf?arch=source
Debian:13 / php-dompdf
Package
- Name
- php-dompdf
- Purl
- pkg:deb/debian/php-dompdf?arch=source