CVE-2026-16548
Last modified
CVE-2026-16548 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat | < 1.8.2 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-16548?
How severe is CVE-2026-16548?
How do I fix CVE-2026-16548?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-1654The Peter's Date Countdown plugin for WordPress is vulnerabl…6.1
- CVE-2026-16540The Simply Schedule Appointments WordPress plugin before 1.6…7.5
- CVE-2026-16543Kong Operator's embedded Kong Kubernetes Ingress Controller …7.1
- CVE-2026-16544A flaw was found in AWX. The websocket event consumer perfor…6.5
- CVE-2026-16546The Wired Impact Volunteer Management WordPress plugin befor…4.3
- CVE-2026-16547The REST API Log WordPress plugin before 1.7.1 does not bind…5.9
- CVE-2026-1655The EventPrime plugin for WordPress is vulnerable to unautho…4.3
- CVE-2026-16551Denial-of-Service in Thinkst Applied Research OpenCanary (Mo…6.9
- CVE-2026-16552Rejected reason: The reported issue is invalid, as it requir…
- CVE-2026-16553GitLab has remediated an issue in GitLab EE affecting all ve…5.4
- CVE-2026-16554cJSON library is vulnerable to an integer overflow in the pr…5.1
- CVE-2026-16558The YMC Filter WordPress plugin before 3.12.8 does not sanit…5.4
Are you affected by CVE-2026-16548?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST