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Description

A vulnerability was detected in Totolink A7000R 4.1cu.4154. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used.

PUBLISHED Reserved 2026-01-28 | Published 2026-01-28 | Updated 2026-02-23 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Command Injection

Injection

Product status

4.1cu.4154
affected

Timeline

2026-01-28:Advisory disclosed
2026-01-28:VulDB entry created
2026-02-09:VulDB entry last update

Credits

xuanyu (VulDB User) reporter

References

github.com/...OTOLINK/A7000R/01_RCE_setUnloadUserData_RCE.md exploit

github.com/...OTOLINK/A7000R/01_RCE_setUnloadUserData_RCE.md exploit

vuldb.com/?id.343231 (VDB-343231 | Totolink A7000R cstecgi.cgi setUnloadUserData command injection) vdb-entry technical-description

vuldb.com/?ctiid.343231 (VDB-343231 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.739713 (Submit #739713 | TOTOLINK A7000R V4.1cu.4154 Command Injection) third-party-advisory

github.com/...OTOLINK/A7000R/01_RCE_setUnloadUserData_RCE.md exploit

github.com/...OTOLINK/A7000R/01_RCE_setUnloadUserData_RCE.md exploit

www.totolink.net/ product

cve.org (CVE-2026-1547)

nvd.nist.gov (CVE-2026-1547)

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