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GHSA-8r5j-22j5-w4cm

XpressEngine vulnerable to Unrestricted Upload of File with Dangerous Type

Source: GitHub Advisory Database (reviewed) Critical CVE-2021-26642

Packages

EcosystemPackageAffectedFixed in
Packagist xpressengine/xpressengine < 3.0.15 3.0.15

Details

As written in the advisory (Markdown source, shown as plain text).

When uploading an image file to a bulletin board developed with XpressEngine, a vulnerability in which an arbitrary file can be uploaded due to insufficient verification of the file. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.

References

External links from the advisory. They lead to third-party sites.