CVE-2021-26918

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Summary

CVECVE-2021-26918
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-09 03:15:00 UTC
Updated2023-11-07 03:31:00 UTC
Description** DISPUTED ** The ProBot bot through 2021-02-08 for Discord might allow attackers to interfere with the intended purpose of the "Send an image when a user joins the server" feature (or possibly have unspecified other impact) because the uploader web service allows double extensions (such as .html.jpg) with the text/html content type. NOTE: there may not be cases in which an uploader web service is customer controlled; however, the nature of the issue has substantial interaction with customer controlled configuration. NOTE: the vendor states "This is just an uploader (like any other one) which uploads files to cloud storage and accepts various file types. There is no kind of vulnerability and it won't compromise either the client side or the server side."

Risk And Classification

Problem Types: CWE-434

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Probot Bot All All All All

References

ReferenceSourceLinkTags
bypasss MISC raw.githubusercontent.com Exploit, Third Party Advisory
Discord Probot Arbitrary File Upload ≈ Packet Storm MISC packetstormsecurity.com Exploit, Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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