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GHSA-2wwr-9x6f-88gp

MediumCVSS 5.3 / 10
Published Jul 1, 2026·Last modified Jul 1, 2026
Affected Components(0)

No affected components available

Description

EasyAdminBundle ships two public Twig components — <twig:ea:Flag countryCode="..."> and <twig:ea:Icon name="..."> — that load SVG files from disk using a path built directly from a public component property, and then render the resulting markup with the Twig |raw filter.

When an application binds either of those properties to data that is influenced by an end user, the lack of validation on the property value leads to two distinct issues:

  • Arbitrary .svg file disclosure (both components) — the property value is concatenated into a filesystem path without normalizing or constraining it, so .. segments are preserved and resolved by PHP. Any file on the server whose absolute path ends in .svg (for example, user-uploaded SVG icons stored elsewhere on the host) can be read and embedded into the rendered page.
  • Reflected XSS in the admin UI (Flag component only) — when the requested flag file does not exist, the Flag component falls back to a hard-coded SVG string that interpolates the raw countryCode value twice, and the parent template renders that string with |raw. An attacker who controls countryCode can therefore inject arbitrary HTML/JavaScript that will execute inside the authenticated admin context that rendered the component.

The first-party usage shipped by EasyAdminBundle itself is not affected: the bundle only passes ISO 3166 alpha-2 codes validated through Symfony\Component\Intl\Countries to the Flag component, and only hard-coded internal:.. names or values previously set in PHP via MenuItem::setIcon() to the Icon component. The vulnerability is reachable only in third-party templates that pass attacker-controlled data into these properties.

Impact

Path traversal is information disclosure bounded by the .svg extension; reflected XSS in Flag runs in the admin context and is therefore more sensitive but requires a vulnerable template wiring and user interaction.

Affected components

  • EasyCorp\Bundle\EasyAdminBundle\Twig\Component\Flag — public Twig tag <twig:ea:Flag>, property countryCode.
  • EasyCorp\Bundle\EasyAdminBundle\Twig\Component\Icon — public Twig tag <twig:ea:Icon>, property name when the value starts with the internal: prefix.

Credit

EasyAdmin would like to thank Claude Mythos Preview (via Project Glasswing and The PHP Foundation) for reporting the issue and providing the fix.

Risk Scores
Base Score
5.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information.

Threat Intelligence
4.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Medium severity
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