Deserialization in Dompdf Php-Svg-Lib
CVE-2023-50252
php-svg-lib is an SVG file parsing / rendering library. Prior to version 0.5.1, when handling `<use>` tag that references an `<image>` tag, it merges the attributes from the `<use>` tag to the `<image>` tag. The problem pops up especially when the `href` attribute from the `<use>` tag has not been sanitized. This can lead to an unsafe file read that can cause PHAR Deserialization vulnerability in PHP prior to version 8. Version 0.5.1 contains a patch for this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.239 (97.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.239 · newest: 0.239 · change: 0.000
Affected products
- Dompdf Php-Svg-Lib — versions < 0.5.1
Weakness classification (CWE)
References
- github.com/dompdf/php-svg-lib/security/advisories/GHSA-jq98-9543-m4cr (Exploit, Mitigation, Vendor Advisory)
- github.com/dompdf/php-svg-lib/commit/08ce6a96d63ad7216315fae34a61c886dd2dc030 (Patch)
Frequently asked questions
- What is CVE-2023-50252?
- CVE-2023-50252 is a high-severity vulnerability in Dompdf Php-Svg-Lib, classified under CWE-15. CVSS score: 8.3/10. Published 2023-12-12.
- How severe is CVE-2023-50252?
- High severity. CVSS v3 base score is 8.3 out of 10.