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Description

A vulnerability was identified in BigSweetPotatoStudio HyperChat up to 2.0.0-alpha.63. Affected by this issue is the function fetch of the file packages/core/src/http/aiProxyMiddleware.mts of the component AI Proxy Middleware. Such manipulation of the argument baseurl leads to server-side request forgery. The attack can be launched remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-04-27 | Published 2026-04-28 | Updated 2026-04-28 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Server-Side Request Forgery

Product status

2.0.0-alpha.0
affected

2.0.0-alpha.1
affected

2.0.0-alpha.2
affected

2.0.0-alpha.3
affected

2.0.0-alpha.4
affected

2.0.0-alpha.5
affected

2.0.0-alpha.6
affected

2.0.0-alpha.7
affected

2.0.0-alpha.8
affected

2.0.0-alpha.9
affected

2.0.0-alpha.10
affected

2.0.0-alpha.11
affected

2.0.0-alpha.12
affected

2.0.0-alpha.13
affected

2.0.0-alpha.14
affected

2.0.0-alpha.15
affected

2.0.0-alpha.16
affected

2.0.0-alpha.17
affected

2.0.0-alpha.18
affected

2.0.0-alpha.19
affected

2.0.0-alpha.20
affected

2.0.0-alpha.21
affected

2.0.0-alpha.22
affected

2.0.0-alpha.23
affected

2.0.0-alpha.24
affected

2.0.0-alpha.25
affected

2.0.0-alpha.26
affected

2.0.0-alpha.27
affected

2.0.0-alpha.28
affected

2.0.0-alpha.29
affected

2.0.0-alpha.30
affected

2.0.0-alpha.31
affected

2.0.0-alpha.32
affected

2.0.0-alpha.33
affected

2.0.0-alpha.34
affected

2.0.0-alpha.35
affected

2.0.0-alpha.36
affected

2.0.0-alpha.37
affected

2.0.0-alpha.38
affected

2.0.0-alpha.39
affected

2.0.0-alpha.40
affected

2.0.0-alpha.41
affected

2.0.0-alpha.42
affected

2.0.0-alpha.43
affected

2.0.0-alpha.44
affected

2.0.0-alpha.45
affected

2.0.0-alpha.46
affected

2.0.0-alpha.47
affected

2.0.0-alpha.48
affected

2.0.0-alpha.49
affected

2.0.0-alpha.50
affected

2.0.0-alpha.51
affected

2.0.0-alpha.52
affected

2.0.0-alpha.53
affected

2.0.0-alpha.54
affected

2.0.0-alpha.55
affected

2.0.0-alpha.56
affected

2.0.0-alpha.57
affected

2.0.0-alpha.58
affected

2.0.0-alpha.59
affected

2.0.0-alpha.60
affected

2.0.0-alpha.61
affected

2.0.0-alpha.62
affected

2.0.0-alpha.63
affected

Timeline

2026-04-27:Advisory disclosed
2026-04-27:VulDB entry created
2026-04-27:VulDB entry last update

Credits

BruceJin (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/359823 (VDB-359823 | BigSweetPotatoStudio HyperChat AI Proxy Middleware aiProxyMiddleware.mts fetch server-side request forgery) vdb-entry technical-description

vuldb.com/vuln/359823/cti (VDB-359823 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/802265 (Submit #802265 | BigSweetPotatoStudio HyperChat 2.0.0-alpha.63 Server-Side Request Forgery) third-party-advisory

github.com/BigSweetPotatoStudio/HyperChat/issues/142 exploit issue-tracking

github.com/BigSweetPotatoStudio/HyperChat/ product

cve.org (CVE-2026-7223)

nvd.nist.gov (CVE-2026-7223)

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