NVD / CVE Program· CNA mitre

CVE-2019-11185: The WP Live Chat Support Pro plugin through 8.0.26 for WordPress contains an arbitrary file upload vulnerability.

Noroxi assessment

Priority: Plan (action score 40/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 4.3% (FIRST EPSS); higher than 91.2% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The WP Live Chat Support Pro plugin through 8.0.26 for WordPress contains an arbitrary file upload vulnerability. This results from an incomplete patch for CVE-2018-12426. Arbitrary file upload is achieved by using a non-blacklisted executable file extension in conjunction with a whitelisted file extension, and prepending "magic bytes" to the payload to pass MIME checks. Specifically, an unauthenticated remote user submits a crafted file upload POST request to the REST api remote_upload endpoint. The file contains data that will fool the plugin's MIME check into classifying it as an image (which is a whitelisted file extension) and finally a trailing .phtml file extension.

CriticalCVSS 9.8 · v3.0—No exploit No fix recorded

Published: Jun 3, 2019
Updated: Jun 16, 2026
EPSS: 4.3% · 91th percentile
CWE: CWE-434

Report tools

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Action score

Plan

Add it to your regular patch cycle.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 4.3%

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

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Vendor	Product	CPE
3cx	live chat	cpe:2.3:a:3cx:live_chat

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

3cx live chatbefore 8.0.26

Same product

3cx: all records

Other highest-scoring records for the same primary product.

CVE-2018-12426The WP Live Chat Support Pro plugin before 8.0.07 for WordPress is vulnerable to unauthenticated Remote Code Execution due to client-side va
41Plan
CVE-2019-12498The WP Live Chat Support plugin before 8.0.33 for WordPress accepts certain REST API calls without invoking the wplc_api_permission_check pr
40Plan
CVE-2014-10386The wp-live-chat-support plugin before 4.1.0 for WordPress has JavaScript injections.
24Monitor

Published before and after this one in the same product

← EarlierCVE-2018-18460Oct 18, 2018 · XSS exists in the wp-live-chat-support v8.0.15 plugin for WordPress via the modules/gdpr.php term parameter in a wp-admin/admin.php wplivech
24Monitor
← EarlierCVE-2019-9913Mar 21, 2019 · The wp-live-chat-support plugin before 8.0.18 for WordPress has wp-admin/admin.php?page=wplivechat-menu-gdpr-page term XSS.
24Monitor
Later →CVE-2016-10879Aug 12, 2019 · The wp-live-chat-support plugin before 6.2.02 for WordPress has XSS.
24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope