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CVE-2023-50252

35
FAUCET Score

CVE-2023-50252 is a critical vulnerability in php-svg-lib (versions prior to 0.5.1) and its dependent product, dompdf, stemming from improper handling of merged attributes in SVG <use> and <image> tags. This flaw allows for an unsafe file read, potentially leading to a PHAR Deserialization vulnerability in PHP versions prior to 8. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability impacts. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the high FAUCET Risk Score of 88/100 indicates its inherent danger.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.5.1CPE matchmatch criteria
cpe:2.3:a:dompdf:php-svg-lib:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.3HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
23.90%
Probability of exploitation in next 30 days
EPSS Percentile
97.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2390 is in the 94th percentile among its peer group of 36,835 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / dompdf/php-svg-lib/commit/08ce6a96d63ad7216315fae34a61c886dd2dc030
Patch
github.com / dompdf/php-svg-lib/security/advisories/GHSA-jq98-9543-m4cr
ExploitMitigationVendor Advisory