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GHSA-3vjh-xrhf-v9xhcritical9.8

Improper Restriction of XML External Entity Reference in dompdf/dompdf

Impact

An improper restriction of external entities (XXE) vulnerability in dompdf/dompdf's SVG parser allows for Server-Side Request Forgery (SSRF) and deserialization attacks. This issue affects all versions prior to 2.0.0. The vulnerability can be exploited even if the isRemoteEnabled option is set to false. It allows attackers to perform SSRF, disclose internal image files, and cause PHAR deserialization attacks.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

dompdf/dompdf Packagist
Affected rangeRecorded fix
Earlier releases before 2.0.0Ecosystem versions2.0.0

Version evidence: OSV · GHSA-3vjh-xrhf-v9xh

View original version evidence (22 explicit versions)

Original source description

An improper restriction of external entities (XXE) vulnerability in dompdf/dompdf's SVG parser allows for Server-Side Request Forgery (SSRF) and deserialization attacks. This issue affects all versions prior to 2.0.0. The vulnerability can be exploited even if the isRemoteEnabled option is set to false. It allows attackers to perform SSRF, disclose internal image files, and cause PHAR deserialization attacks.

References