THREATPORT/VULNERABILITY/CVE-2023-50252
HIGH SEVERITY

CVE-2023-50252

Php Svg Lib vulnerability

CVSS
8.3
EPSS
23.9%
EPSS pct
98th
Exploited
No known
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.
Affected vendor
Dompdf
Affected product
Php Svg Lib
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness type (CWE)
Published
2023-12-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity, low impact to availability.

Its EPSS score of 23.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2023-50252

  • Confirm whether Dompdf Php Svg Lib is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-50252.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-50252

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-50252 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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