HOME VULNERABILITIESCVE-2023-50252

CRITICAL

CVE-2023-50252

CWE-15Published: December 12, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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.

Technical Analysis

CVE-2023-50252 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

dompdf1 product(s)

php-svg-lib

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/dompdf/php-svg-lib/commit/08ce6a96d63ad7216315fae34a61c886dd2dc030

PATCHhttps://github.com/dompdf/php-svg-lib/commit/08ce6a96d63ad7216315fae34a61c886dd2dc030

ADVISORYhttps://github.com/dompdf/php-svg-lib/security/advisories/GHSA-jq98-9543-m4cr

ADVISORYhttps://github.com/dompdf/php-svg-lib/security/advisories/GHSA-jq98-9543-m4cr

All References (4)

→

https://github.com/dompdf/php-svg-lib/commit/08ce6a96d63ad7216315fae34a61c886dd2dc030Patch

→

https://github.com/dompdf/php-svg-lib/security/advisories/GHSA-jq98-9543-m4crExploit · Mitigation · Vendor Advisory

→

https://github.com/dompdf/php-svg-lib/commit/08ce6a96d63ad7216315fae34a61c886dd2dc030Patch

→

https://github.com/dompdf/php-svg-lib/security/advisories/GHSA-jq98-9543-m4crExploit · Mitigation · Vendor Advisory

Quick Facts

CVE IDCVE-2023-50252

CVSS Score9.8 / 10

SeverityCRITICAL

WeaknessCWE-15

CISA KEVNo

Affected1 vendor(s)

PublishedDec 12, 2023

Related CVEs (CWE-15)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2023-50252 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

← All Vulnerabilities·Search for CVE-2023-50252·NVD