TI-2026-13809 Aliases CVE-2026-16548 GHSA-5mjf-g86r-2c6f

Bit Assist < 1.8.2 - Unauthenticated Arbitrary File Upload via Response Endpoint

LOW 35CWE-434Published 2026-08-04 · Updated 2026-08-11

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: None · Low · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.

Summary

The Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat WordPress plugin before 1.8.2 does not validate the type, extension, content, or size of files submitted to its public response endpoint and stores them under the uploads directory, so an unauthenticated user can upload arbitrary files. The original extension is discarded (files are stored under a bare UUID), so this does not yield code execution or stored XSS; impact is bounded to disk consumption and content hosting. The storing path requires the channel's response storage or mail-forwarding to be configured.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00432 37th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix Fixed Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat (Unknown): 1.8.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat	before 1.8.2	1.8.2	Patch available	CNA

Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat VendorUnknown Affected before 1.8.2 Fixed in 1.8.2 Patch available CNA

Remediation

Fix · CNA Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat (Unknown) Fixed in 1.8.2

Timeline

2026-10-02 Threatist record created from CVE-2026-16548
2026-10-03 Alias added: GHSA-5mjf-g86r-2c6f

References

Exploit 1

https://wpscan.com/vulnerability/14d5f86b-f0ab-4920-99d0-8e2a66486232/

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences